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The Divine Trinity: A Dogmatic Treatise (Dogmatic theology series, v2; St. Louis: B. Herder; et al., 1912), by Joseph Pohle, ed. by Arthur Preuss
- multiple formats at archive.org
- page images at HathiTrust
Gloria Patri: or, Our Talks About the Trinity (New York: T. Whitaker, 1892), by James Morris Whiton (multiple formats at archive.org)
The Oneness of God, by David K. Bernard (HTML at newlifeupc.org)
The Secret of the Universe: "God, Man and Matter" (New York: F. H. Revel and Co., 1932), by Nathan R. Wood (HTML with commentary at sacred-texts.com)
An Examination of the Divine Testimony on the Nature and Character of the Son of God (Hartford: Printed for the author, 1824), by Henry Grew (multiple formats at Google)
Great Truths on Great Subjects, by Jonathan Bayley (PDF at swedenborg.org)
Doctrine of the Trinity; the Biblical evidence / (Cincinnati : Granston & Stowe; New York : Hunt & Eaton, 1891), by Richard N. Davies (page images at HathiTrust)
Godliness, a great mystery. (New-Brunswick, N.J., Press of J. Terhune, 1857), by Jonathan Cogswell (page images at HathiTrust)
The deity of Christ, briefly considered, (Cincinnati, E. Morgan and co., 1846), by Andrew Carroll (page images at HathiTrust)
An exposition of the trinities of the Sacred Scriptures; or, A compend of the Christian creed, (Montgomery, Ala., Barrett & Wimbish, printers, 1857), by Charles Evans (page images at HathiTrust)
De ineffabili Trinitatis mysterio : oratio habita in sacello pontificio ad sanctissimum D.N. Clementem XIII. pont. max. / (Romae : Ex typographia Chracas ..., 1761), by Cajetano Stampa (page images at HathiTrust)
The doctrine of the trinity underlying the revelation of redemption [electronic resource] / (Edinburgh : W. Oliphant; Pictou, N.S. : J. M'Lean; New Glasgow, N. S. : W.L. Campbell, 1870), by George Patterson (page images at HathiTrust)
Two sermons [electronic resource] : collected chiefly from Stackhouse's Body of Divinity and printed for the use of private families in the island of Cape-Breton. (Halifax [N.S.] : Printed by John Howe ... , 1793), by Thomas Stackhouse (page images at HathiTrust)
The philosophic origin and historical progress of the doctrine of the Trinity [electronic resource] : a lecture delivered in the Unitarian Church, Montreal, on Sunday evening, January 26th, 1851 / ([Montreal? : s.n.], 1851), by John Cordner (page images at HathiTrust)
The Father manifested in the Son [electronic resource] : sermon preached in Knox's Church, Toronto, on Thursday evening, Sept. 26, 1867 / (Toronto : E.T. Bromfield, [1867?]), by Newman Hall (page images at HathiTrust)
The Holy Trinity [electronic resource] : being the twenty-sixth annual lecture before the Theological Union of the University of Mount Allison College / (Toronto : W. Briggs, 1906), by Charles Stewart (page images at HathiTrust; US access only)
A letter to the Right Reverend, the Lord Bishop of Fredericton [i. e. John Medley] [electronic resource] / ([Saint John, N.B.? : s.n.], 1851), by R. B. Wiggins and John Medley (page images at HathiTrust)
Ein Schifflein gegen den Wind gerichtet [electronic resource] : nämlich ein Auszug aus der Heiligen Schrift über einige Religions-Fragen unserer Zeit / (Berlin [Kitchener], Ont. : [s.n.], 1883), by Jacob Martin (page images at HathiTrust)
The development of trinitarian doctrine in the Nicene and Athanasian Creeds a study in theological definition / (New York : Longmans, Green, 1910), by William Samuel Bishop (page images at HathiTrust)
Gloria patri; our talks about the Trinity and the new trinitarianism. (New York, T. Whittaker, 1904), by James Morris Whiton (page images at HathiTrust)
Atheism of Brownson's review. Unity and trinity of God. Divinity and humanity of Christ Jesus. Banks and paper money. (Burlington, VT :, 1852), by Jeremiah O'Callaghan (page images at HathiTrust)
The luminous unity : or, Letters addressed to the Rev. A. Guinzburg, a rabbi of Boston, Mass. (Philadelphia : Lippincott, 1876), by Matthew R Miller and Aaron Ginzburg (page images at HathiTrust)
Questions awakened by the Bible. I. Are souls immortal? II. Was Christ in Adam? III. Is God a trinity? (Philadelphia : J. B. Lippincott, 1877), by John Miller (page images at HathiTrust)
Reasons offered by Samuel Eddy for his opinions to the First Baptist Church in Providence : from which he was compelled to withdraw for heterodoxy. (Baltimore : Baltimore Unitarian Book Society, 1821), by Samuel Eddy and R.I.) First Baptist Church (Providence (page images at HathiTrust)
Thoughts on the Trinity, second edition, corrected and enlarged : Charges, and other theological works / (London : T. Cadell, Strand, and W. Blackwood, 1832), by George Isaac Huntingford (page images at HathiTrust)
The judgment of the Catholic Church on the necessity of believing that Our Lord Jesus Christ is very God : the primitive and apostolic tradition of the doctrine concerning the divinity of Our Saviour Jesus Christ : and brief animadversions on a treatise of Mr. Gilbert Clerke / (Oxford : J. H. Parker, 1855), by George Bull (page images at HathiTrust)
Discourses on the nature, evidence, and moral value of the doctrine of the Trinity. (Boston, 1834), by Hubbard Winslow (page images at HathiTrust)
Tritheism charged upon Dr. Sherlock's new notion of the Trinity; and the charge made good, in an answer to the defense of the said notion against the Animadversions upon Dr. Sherlock's book, entituled, A vindication of the doctrine of the holy and ever blessed Trinity, &c. (London, Printed for John Whitlock, 1695), by Robert South (page images at HathiTrust)
Five discourses, (London, Printed for C. Brome, W. Keblewhite, and G. Strahan, 1700), by Charles Leslie (page images at HathiTrust)
Outline of the testimony of scripture against the trinity / (Boston : C. Bowen : printed for the American Unitarian Association, 1832), by Henry Ware (page images at HathiTrust)
A letter to the Rt. Hon. and Hon. the Members of both houses of Parliament : regarding the doctrines of the Established Church / ([London] : Printed for the author, 1836), by Thomas Thrush (page images at HathiTrust)
The works of Samuel Clarke. (London : Printed for J. and P. Knapton, 1738), by Samuel Clarke and Pre-1801 Imprint Collection (Library of Congress) (page images at HathiTrust)
Works. (Oxford University Press, 1828), by Matthew Horbery (page images at HathiTrust)
An essay on spirit : wherein the doctrine of the Trinity is considered in the light of nature and reason : as well as in the light in which it was held by the ancient Hebrews : compared also with the doctrine of the Old and New Testament : with an inquiry into the sentiments of the primitive fathers of the Church : and the doctrine of the Trinity as maintained by the Egyptians, Pythagoreans and Platonists : together with some remarks on the Athanasian and Nicene Creeds. (London printed : Sold by J. Noon ..., G. Woodfall ..., and M. Cooper ..., 1751), by Robert Clayton (page images at HathiTrust)
The apostolicity of Trinitarianism: or, The testemony of history, to the positive antiquity, and to the apostolical inculation, of the doctrine of the Holy Trinity. (London, J. G. & F. Rivington, 1832), by George Stanley Faber (page images at HathiTrust)
The glorious mystery of the person of Christ, God and Man : to which are subjoined, Meditations and discourses on the glory of Christ / (New York : R. Carter, 1839), by John Owen (page images at HathiTrust)
Discourses on the principal points of the Socinian controversy / (London : Longman, Rees, Orme, Brown, & Green, 1828), by Ralph Wardlaw (page images at HathiTrust)
The judgment of the ancient Jewish church against the Unitarians, in the controversy upon the Holy Trinity, and the divinity of our Blessed Saviors. With a table of matters, and a table of texts of Scripture occasionally explain'd. (London : Printed for Ri. Chiswell, 1699), by Pierre Allix (page images at HathiTrust)
The Trinity, (New York, Longmans, Green, and Co., 1910), by Francis J. Hall (page images at HathiTrust)
The love of the Trinity / (London : W. Garner, Darton, [1908]), by Arthur F. Winnington Ingram (page images at HathiTrust)
Philoxeni Mabbugensis tractatus tres de trinitate et incarnatione. (Parisiis, E Typographeo Reipublicae, 1907), by Bishop of Hierapolis Philoxenus and Arthur Adolphe Vaschalde (page images at HathiTrust; US access only)
Memoir of the controversy respecting the three heavenly witnesses, I John v. 7 : including critical notices of the principal writers on both sides of the discussion / (London : Holdsworth and Ball, 1830), by William Orme and Ezra Abbot (page images at HathiTrust)
A Scriptural confutation of the arguments against the one Godhead of the Father, Son, and Holy Ghost : produced by the Reverend Mr. Lindsey in his late apology / (York : Printed by A. Ward for the Author ..., 1775), by William Burgh (page images at HathiTrust)
Thirteen sermons concerning the doctrine of the trinity. Preach'd at the merchant's-lecture, at Salter's Hall. (London, Printed for J. Clark, 1722), by Edmund Calamy (page images at HathiTrust)
The judgment of the Catholic Church on the necessity of believing that Our Lord Jesus Christ is very God : the primitive and apostolic tradition of the doctrine concerning the divinity of Our Saviour Jesus Christ : and brief animadversions on a treatise of Mr. Gilbert Clerke / (Oxford : J. H. Parker, 1855), by George Bull (page images at HathiTrust)
Animadversions upon Dr. Sherlock's book, entituled A vindication of the holy and ever-blessed Trinity, etc. Together with a more necessary vindication of that sacred, and prime article of the Christian faith from his new notions, and false explications of it, (London, R. Taylor, 1693), by Robert South (page images at HathiTrust)
Certain propositions, by which the doctrin of the H. Trinity is so explain'd, according to the ancient fathers, as to speak it not contradictory to natural reason; together with a defence of them, in answer to the objections of a Socinian writer, in his newly printed Considerations on the explications of the doctrin of the Trinity ... In a letter to that author. (London, Printed for Brabazon Aylmer, 1694), by Edward Fowler and Stephen Nye (page images at HathiTrust)
A collection of queries. Wherein the most material objections from scripture, reason, and antiquity, which have as yet been alleged against Dr. Clarke's scripture-doctrine of the Trinity, and the defenses of it, are proposed and answered. With an appendix: in which are offered to the consideration of the learned, some queries ... concerning the vulgar scholastick explication of the doctrine of the Trinity and Incarnation. (London, Printed for James Knapton, 1716), by John Jackson and Samuel Clarke (page images at HathiTrust)
A third collection of tracts, proving the God and Father of Our Lord Jesus Christ, the Only True God; and Jesus Christ the Son of God, him whom the Father sanctified and sent, raised from the dead and exalted. And disproving the doctrine of three almighty real subsisting persons, minds or spirits. Giving also an account of the nominal Trinity ... called by schoolmen persons; and of the judgment of the fathers and Catholick Church for the first 150 years. ([n.p., 1695]), by Matthew Tindal and Stephen Nye (page images at HathiTrust)
The reflections on the xxviii propositions touching the doctrine of the Trinity, in a Letter to the clergy, etc., maintain'd against the third defence of the said propositions, ([London] [s.n.], 1695), by Matthew Tindal (page images at HathiTrust)
The grounds of the present differences among the London ministers : in two parts ... / (London : Printed for John Clark, and Andrew Bell, 1720), by John Cumming (page images at HathiTrust)
The Scriptural doctrine of Our Lord Jesus Christ, and the Holy Spirit, in their relation to God the Father. (Boston, J. Munroe, 1840), by Nathaniel S. Folsom (page images at HathiTrust)
The unity of God, a sermon, delivered in America, September, 1815. (Worcester, Printed by William Manning, 1817), by Samuel Cooper Thacher (page images at HathiTrust)
The review, or, The young Christian's reply to the Presbyterian doctor : also, three different trinities and a two nature scheme presented to view : together with a dissertation on the origin of the Trinity ... (Philadelphia : Gihon, Fairchild & Co., printers, 1844), by N. Summerbell (page images at HathiTrust)
The duty of the clergy, with respect to inculcating the doctrine of the trinity; set forth in a fifth charge. Delivered at the opening of the convention of the Protestant Episcopal Church in the state of New York, in Trinity Church, in the city of New-York, on Thursday, October l, 1829. (New-York: Printed at the Protestant Episcopal Press ..., 1829), by John Henry Hobart and 1829 Episcopal Church. Diocese of New York. Convention (page images at HathiTrust)
The Faith of one god, who is only the Father; and of one mediator between God and men, who is only the man Christ Jesus; and of one Holy Spirit, the gift (and sent) of God. Asserted and defended in several tracts contained in this volume ... (London, 1691), by John Biddle (page images at HathiTrust)
Observations on the four letters of Dr. John VVallis, concerning the Trinity and the Creed of Athanasius. (London : [s.n.], printed in the year, MDCXCI [1691]), by Stephen Nye and John Wallis (page images at HathiTrust)
A discourse of the everblessed Trinity in unity, with an examination of Dr. Clarke's Scripture doctrine of the Trinity, (London, Printed for W. Innys at the Prince's Arm, 1718), by Thomas Bennet (page images at HathiTrust)
A treatise on the divine nature : exhibiting the distinction of the Father, Son, and Holy Spirit / (Boston : S. T. Armstrong, 1824), by Humphrey Moore (page images at HathiTrust)
Several papers relating to Mr. Whiston's cause before the Court of delegates; viz. I. Mr. Whiston's reasons against that procedure. II. The articles exhibited against him by Dr. Pelling in that court. III. Mr. Whiston's defence of himself from those articles. To which are added IV. His letter to the Reverend Dr. Sacheverell. V. His letter to the Right Reverend the present Lord Bishop of London, with the answers. VI. His letter to the Reverend Mr. Broughton, with his answer. (London, Printed and sold by J. Clark, J. Brown, and J. Richardson, 1715), by William Whiston (page images at HathiTrust)
Tractatus de Deo uno et trino. (Lovanii : E typographia J.P.G. Michel, MDCCLXXVI [1776]), by Jean François Perin (page images at HathiTrust)
A sequel to the Essay on spirit: being the result of a fair and serious inquiry concerning a very important doctrine of the Christian religion, as delivered in the Sacred Scriptures. With some observations relating to the Athanasian and Nicene creeds. (London, J. Noon, 1752), by William Hopkins and Robert Clayton (page images at HathiTrust)
A defence of Dr. Sherlock's notion of a Trinity in Unity, in answer to the Animadversions upon his Vindication of the doctrine of the holy and ever blessed Trinity. With a postscript relating to the Calm discourse of a Trinity in the Godhead. In a letter to a friend. (London, Printed for W. Rogers, at the Sun, over-against St. Dunstan's Church in Fleet-Street, 1694), by William Sherlock (page images at HathiTrust)
Tritheism, charged upon Dr. Sherlock's new notion of the Trinity, and the charge made good, in an answer to the defense of the said notion against the animadversions upon Dr. Sherlock's book, entituled, A vindication of the doctrine of the Holy and ever blessed Trinity, etc., by a Divine of the Church of England. (London, J. Whitlock, 1695), by Robert South and William Sherlock (page images at HathiTrust)
The judgment of a disinterested person, concerning the controversy about the B. Trinity, depending between Dr. S--th [i.e. R. South] and Dr. Sherlock, (London, Printed ... by E. Whitlock, 1696), by Arthur Bury (page images at HathiTrust)
A letter to the reverend the clergy of both universities, concerning the Trinity and the Athanasian Creed. With reflections on all the late hypotheses, particularly Dr. W's, Dr. S--th's, the Trinity placed in its due light ... ([London] [s.n.], 1694), by Matthew Tindal (page images at HathiTrust)
Considerations on the explications of the doctrine of the Trinity by Dr. Wallis, Dr. Sherlock, Dr. S--th, Dr. Cudworth, and Mr. Hooker : as also on the account given by those that say, the Trinity is an unconceivable and inexplicable mystery : written to a person of quality. ([London : s.n.], Printed in the year MDCXCIII [1693]), by Stephen Nye (page images at HathiTrust)
An examination of Mr. Nye's Explication of the articles of the divine Unity, the Trinity and Incarnation. Wherein is briefly shown, the insufficiency of that explication both from Scripture and reason; with a vindication of Dr. Clarke's Scripture-doctrine and Replies, from the charge of Tritheism. (London, Printed for J. Baker, 1715), by John Jackson (page images at HathiTrust)
A letter to the Right Reverend the Lord Bishop of Clogher, in Ireland, occasioned by his Lordship's Essay on spirit. To which is added, A letter to the Right Honourable John earl of Orrery, occasisoned by the character which his Lordship gives of Dean Swift's Sermon on the Trinity, in his Remarks on the life and writings of the Dean. (London, J. Noon, MDCCLII), by Richard Moseley (page images at HathiTrust)
Die Trinitätslehre des hl. Basilius des Grossen : eine dogmengeschichtliche Studie / (Paderborn : Schöningh, 1912), by Franz Nager (page images at HathiTrust; US access only)
Studies in Tertullian and Augustine, (New York, London, Oxford university press, 1930), by Benjamin Breckinridge Warfield and Ethelbert Dudley Warfield (page images at HathiTrust; US access only)
Horae solitariae, or, Essays upon some remarkable names and titles of Jesus Christ occurring in the Old Testament and declarative of his essential divinity and gracious offices in the redemption of men : to which is annexed, an essay, chiefly historical, upon the doctrine of the Trinity (Albany [N.Y.] : E. Torrey, Jr., 1815), by Ambrose Serle (page images at HathiTrust)
Commentarij ac distributiones in primam partem Summa theologiæ. De deo uno et Trino in tres præcipuos tractatus distributæ ... / (Venetiis : apud Bernadum Junctam, Joan. Bapt. Ciottum, & Socios, 1608), by Francisco Suárez, Saint Thomas Aquinas, and former owner. MChB-B Bibliothèque des Fontains (page images at HathiTrust)
Commentaria ac disputationes in primam partem Diui Thomae, de Deo vno & trino / (Moguntiæ : Ex officina typographica Balthasari Lippij : Sumptibus Hermanni Mylij Birckmanni., Anno Domini M. DCVII. [1607]), by Francisco Suárez, Saint Thomas Aquinas, and Balthasar Lipp, contrib. by Hermann Mylius and Jesuit Residence of Enghien (Belgium) (page images at HathiTrust)
Doctoris Fran. Suares Granatensis e Societate Iesu ... Prima pars Summae theologiae in Deo Uno & Trino : in tres praecipvos tractatve distributa cum variis indicibus : opus de novo in lucem editum, & a mendis, quam accuratissime repurgatum. (Lugduni : Sumptibus Horatij Cardon, M. DCVII. [1607]), by Francisco Suárez and Horace Cardon (page images at HathiTrust)
An investigation of the Trinity of Plato and of Philo Judaeus, and of the effects which an attachment to their writings had upon the principles and reasonings of the fathers of the Christian church; (London [etc] : J.W. Parker, 1853), by Caesar Morgan and Hubert Ashton Holden (page images at HathiTrust)
Letters to Mr. Archdeacon Travis, in answer to his defence of the three heavenly witnesses, I John v 7. (London : T. and J. Egerton, 1790), by Richard Porson and Jared Sparks (page images at HathiTrust)
Letters on the divine trinity : addressed to Henry Ward Beecher / (Philadelphia : J.B. Lippincott & Co., 1869), by B. F. Barrett and Henry Ward Beecher (page images at HathiTrust)
Unitarian principles confirmed by Trinitarian testimonies : being selections from the works of eminent theologians belonging to orthodox churches, with introductory and occasional remarks / (Boston : American Unitarian Association, 1869), by John Wilson (page images at HathiTrust)
A reply to the Second defence [by E. F.] of the 28 propositions [touching the doctrine of the Trinity, also by E. F.], said to be wrote i answer to a Socinian manuscript, by the Author of the MS, no Socinian, but a Christian and Unitarian. (London, 1695) (page images at HathiTrust)
Christologia, or, A declaration of the glorious mystery of the person of Christ, God and man : with the infinite wisdom, love and power of God in the contrivance and constitution thereof; as also of the grounds and reasons of his incarnation, the nature of his ministry in heaven, the present state of the church above thereon, and the use of his person in religion; with an account and vindication of the honour, worship, faith, love and obedience due unto him, in and from the church / (Glasgow : Printed by Ebenezer Miller, 1790), by John Owen (page images at HathiTrust)
Four lectures delivered in the Church of the Holy Trinity, Philadelphia ... / (Boston : A. Mudge, 1877), by Alexander H. Vinton (page images at HathiTrust)
The spirit and the incarnation : in the light of scripture, science, and practical need / (Edinburgh : T. & T. Clark, 1907), by William Lowe Walker (page images at HathiTrust)
Das Problem des Geistes mit besonderer Würdigung des dreieinigen Gottesbegriffs und der biblischen Schöpfungsidee [microform] : akademische Festrede ... gehalten am 11. Mai 1897 / (Würzburg : Druck der Kgl. Universitätsdruckerei von H. Stürtz, 1897), by Herman Schell (page images at HathiTrust; US access only)
The new and the old doctrine of the unity and trinity in God [microform] / (Philadelphia : American New Church Tract and Publication Society, [18--?]), by Chauncey Giles (page images at HathiTrust)
Hypostases plotiniennes et Trinité chrétienne [microform]. (Paris : [s.n.], 1917-18), by François Picavet (page images at HathiTrust)
Zur Dreieinigkeit, oder vom Wesen des Herrn und vom dreifältigen Wesen des zu Seinem Ebenbilde berufenen Menschen / (Bietigheim a.E. : Württbg., Neu-Salems-Verlag, 1920), by C. F. Landbeck and Jakob Lorber (page images at HathiTrust; US access only)
Letters to a trinitarian; or, The doctrine of the tripersonality of Jehovah inconsistent with the truth of incarnation. (Boston, Otis Clapp [etc.], 1850), by George Bush (page images at HathiTrust)
A plea for the deity of Jesus, and the doctrine of the Trinity; being a chronological view of what is related concerning the person of Christ, the Holy Spirit, and the Trinity; whether in the sacred writings, or in Jewish, heathen, and Christian authors. (London, Printed for W. Brown, and Robinson and son, and Hardcastle, Leeds, 1812), by David Simpson and Edward Parsons (page images at HathiTrust)
The Trinity, (New York [etc.] Longmans, Green, and Co., 1918), by Francis J. Hall (page images at HathiTrust)
A statement of reasons for not believing the doctrines of Trinitarians, concerning the nature of God and the person of Christ. (Boston, American Unitarian Association, 1856), by Andrews Norton and William Newell (page images at HathiTrust)
Christian heresies classified as simplifications of Christian dogmas by conversion of plurality into unity or of unity into plurality. (London : Elliot Stock, 1902), by Sydney Spencer Claude Tickell (page images at HathiTrust; US access only)
the divine Trinity and divine Providence with related subjects / (New York : American Swedenborg Print. and Pub. Society, 1885), by Emanuel Swedenborg (page images at HathiTrust)
Is God a trinity? / (Princeton, N.J. : Priv. print., 1922), by John Miller (page images at HathiTrust)
Thoughts on the Trinity / (London : [s.n.], 1804), by George Isaac Huntingford (page images at HathiTrust)
The Chalcedonian decree; or, Historical Christianity, misrepresented by modern theology, confirmed by modern science, and untouched by modern criticism, (New York, T. Whittaker, 1892), by John Fulton (page images at HathiTrust)
Theiotes : or, an argument on the existence, perfections and personal distinctions of the deity : intended as an antidote to atheism, pantheism, Unitarianism, and Sabellianism / (London : Partridge and Oakey, [1849?]), by William Cooke (page images at HathiTrust)
A review of trinitarianism : chiefly as it appears in the writings of Pearson, Bull, Waterland, Sherlock, Howe, Newman, Coleridge, Wallis, and Wardlaw : with a brief notice of sundry passages of the New Testament, bearing on this controversy / (London : John Chapman, 1847), by John Barling (page images at HathiTrust)
Tributi di lode all'altissima, ed imperscrutabile maesta di Dio trino, ed uno ... (Cesena : Giuseppe Gherardi, 1710), by Antonio Cavagna Sangiuliani di Gualdana, Sebastiano Visanetti, and Giovanni Battista Turrini (page images at HathiTrust)
A scriptural defence of the doctrine of the Trinity, or, A check to modern Arianism as taught by Unitarians, Hicksites, New Lights, Universalists and Mormons, and especially by a sect calling themselves "Christians" / (New York : Huntington & Savage, and Mason & Law, 1851), by Hiram Mattison (page images at HathiTrust)
The doctrine of the Trinity. (New York : Abingdon Press, [1958]), by Cyril Charles Richardson (page images at HathiTrust; US access only)
Der Begriff "Person" in seiner Anwendung auf die Lehre von der Trinität und Incarnation / (Mains : Franz Kirchheim, 1876), by C. Braun (page images at HathiTrust)
The image of God; the doctrine of St. Augustine and its influence. (Dubuque, Iowa : Priory Press, [1963]), by John Sullivan (page images at HathiTrust; US access only)
The divine Trinity : a dogmatic treatise / (St. Louis : Herder, 1915), by Joseph Pohle and Arthur Preuss (page images at HathiTrust)
Unitarian principles confirmed by Trinitarian testimonies : being selections from the works of eminent theologians belonging to orthodox churches, with introductory and occasional remarks / (Boston : American Unitarian Association, 1884), by John Wilson (page images at HathiTrust)
Visual representations of the Trinity : an historical survey / (Cooperstown, N. Y. : The Arthur H. Crist publishing co., 1917.), by John Brainerd MacHarg (page images at HathiTrust)
A statement of reasons for not believing the doctrines of Trinitarians : concerning the nature of God and the person of Christ / (Boston : American Unitarian Association, 1873), by Andrews Norton and William Newell (page images at HathiTrust)
A statement of reasons for not believing the doctrines of Trinitarians : concerning the nature of God and the person of Christ / (Boston : American Unitarian Association, 1886), by Andrews Norton and William Newell (page images at HathiTrust)
Marcelliana. Accedit Eunomii Ekthesis pisteōs emendatior. (Gottingae : Sumptihus, Vandenhoek et Ruprecht, 1794), by of Ankara Marcellus, ed. by Christian Heinrich Georg Rettberg (page images at HathiTrust)
The Socinian controversy discuss'd: wherein the chief of the Socinian tracts (publish'd of late years here) are consider'd ... (London, Printed for G. Strahan, at the Golden Ball over against the Royal-Exchange in Cornhill., New-Years Day, 1708), by Charles Leslie (page images at HathiTrust)
ʻEdut be-Yaʻaḳov = Ueber die Mysterien welche enthalten sind in den zur Bezeichnung Gottes dienenden drei Vocalbuchstaben y h ṿ. Ein versuch ... den Ursprung ... der Trinitäts-Idee nachzuweisen ... / (Anclam : Verlag von W. Dietze, 1848), by Simeon Leon Schwabacher (page images at HathiTrust)
A szent háromsag eredetének és kifejlődésének története : egy bevezető ertekezéssel az orthodoxiáról / (Pest : Petrek G., 1872), by Domokos Simén (page images at HathiTrust)
Tertullian adversus Praxean, (Tübingen, J. C. B. Mohr (Paul Siebeck), 1907), by Tertullian and E. Kroymann (page images at HathiTrust; US access only)
Philoxeni Mabbugensis tractatus tres de trinitate et incarnatione / (Parisiis : C. Poussielgue; Lipsiae : Otto Harrassowitz, 1907), by Bp. of Hierapolis Philoxenus (page images at HathiTrust; US access only)
The Christian doctrine of God : lectures delivered to the members of the S. Paul's Lecture Society / (London : Published for the S. Paul's Lecture Society by Richard Flint, 1906), by W. J. Sparrow-Simpson (page images at HathiTrust; US access only)
A treatise on divine institutions and the origin of episcopacy in the times of the apostles / (London : Sampson Low, Marston, Low & Searle, 1874), by H. T. Adamson (page images at HathiTrust)
Nazareth against Nice, or, An impartial view of the existing churches, their creeds and principles, from the stand-point of the written word of God / (Washington, D.C. : T. McGill, 1887), by Henry Hardy (page images at HathiTrust)
Unitarianism defined : the scripture doctrine of the father, son and holy ghost; a course of lectures / (Boston : American Unitarian Association, 1873), by Frederick A. Farley (page images at HathiTrust)
The spirit and the incarnation : in the light of scripture, science, and practical need / (Edinburgh : T. & T. Clark, 1899), by W. L. Walker (page images at HathiTrust)
The Trinity / (London : H. Marshall, 1901), by Robert F. Horton (page images at HathiTrust; US access only)
Jehovah-Jesus : the oneness of God : the true Trinity / (New York : Dodd, Mead & company for the author ;, 1876), by Robert D. Weeks (page images at HathiTrust)
Gott in Christus / (Freiburg : J. C. B. Mohr, 1899), by Friedrich Niebergall (page images at HathiTrust; US access only)
History of the origin of the doctrine of the trinity in the Christian church / (London : Christian Life, 1899), by Hugh H. Stannus and R. Spears (page images at HathiTrust)
Unitarianism defined : the scripture doctrine of the Father, Son and Holy Ghost. A course of lectures / (Boston : American Unitarian Association, 1890), by Frederick A. Farley and American Unitarian Association (page images at HathiTrust)
Spuren binitarischern Denkweise im Abendlande seit Tertullian. (Jena, Druck von A. Kämpfe, 1902), by Waldemar Karl Ludwig Macholz (page images at HathiTrust; US access only)
Personality; human and divine, (New York, T. Whittaker, 1882), by William Whittingham Olssen (page images at HathiTrust)
Der begriff "Person" in seiner anwendung auf die lehre von der Trinität und incarnation, (Mainz, F. Kirchheim, 1876), by Karl Braun (page images at HathiTrust)
Biblical standpoint : views of the sonship of Christ, the Comforter, and Trinity / (Boston : A. Williams, 1874), by Asa Wilbur (page images at HathiTrust)
The being of God as unity and Trinity / (Boston : Houghton, Mifflin ; Cambridge : Riverside Press, 1891), by Peter Henry Steenstra (page images at HathiTrust; US access only)
Vater, Sohn und Geist : unter den heiligen Dreiheiten und vor der religiösen Denkweise der Gegenwart / (Tübingen : J.C.B. Mohr (Paul Siebeck), 1909), by Nathan Söderblom (page images at HathiTrust; US access only)
Die Trinitätslehre des Heiligen Hilarius von Poitiers / (Mainz : F. Kirchheim, 1903), by Anton E. Beck (page images at HathiTrust; US access only)
The Socinian controversy discuss'd in six dialogues: wherein the chief of the Socinian tracts publish'd of late years are consider'd. To which is added, a defence of the first and last dialogues relating to the satisfaction of Jesus Christ / (London : Printed for G. Strahan, at the Golden Ball over against the Royal-Exchange in Cornhill, 1719), by Charles Leslie (page images at HathiTrust)
Letters addressed to relatives and friends, chiefly in reply to arguments in support of the doctrine of the Trinity. (Boston : J. Munroe and Company; London, Chapman Brothers, 1846), by Mary Dana Shindler (page images at HathiTrust)
A vindication of the literary character of the late Professor Porson, from the animadversions of the Right Reverend Thomas Burgess ... in various publications on 1 John v. 7. (Cambridge [Eng.] : Printed by J. Smith for J. & J. J. Deighton, Cambridge; and C. & J. Rivington, London, 1827), by Thomas Turton (page images at HathiTrust)
The wonderful word "Jah" : the challenge of the Chief Rabbi refuted, and the eternal trinity of Jehovah Ehlohim proved from the law and the prophets, without reference to the New Testament / (London : Houlston and Sons, 1870), by Edward Poulson (page images at HathiTrust)
Hysterai phrontides, or, The last thoughts of Dr. Whitby : containing his correction of several passages in his commentary on the New Testament, to which are added, five discourses ... (London : Printed for James and Johan Knapton, 1728), by Daniel Whitby (page images at HathiTrust)
An humble attempt to investigate and defend the scripture doctrine, concerning the Father, the Son, and the Holy Spirit: to which is now added Observations concerning the mediation of Jesus Christ, in the various dispensations of God the Father and the final issue of his administration, with an appendix: In which the objections commonly urged from the Hebrew Names Alehim, and Jihevuhe, &c. are considered, and the signification of these Names pointed out ... (Philadelphia: Published by John Gillespie, Book-seller., 1819), by James Purves (page images at HathiTrust)
A statement of reasons for not believing the doctrines of Trinitarians : concerning the nature of God and the person of Christ / (Boston : American Unitarian Association, 1882), by Andrews Norton and William Newell (page images at HathiTrust)
The Consequences of the Modalists system. ([London?] : [publisher not identified], [1693?]) (page images at HathiTrust)
A collection of tracts, Relating to The Diety, Worship, and Satisfaction of the Lord JESUS CHRIST, &c. (London : Printed by J. Darby and T. Browne, in Bartholomew-Close., MDCCXXX), by Thomas Emlyn (page images at HathiTrust)
A Scriptural defence of the doctrine of the trinity : or a check to modern Arianism as taught by Campbellites, Hicksites, New Lights, Universalists and Mormons, and especially by a sect calling themselves "Christians" / (New York : L. Colby, 1846), by Hiram Mattison (page images at HathiTrust)
Horae solitariae: or, Essays upon some remarkable names and titles of the Holy Spirit ... To which is annexed a brief account of the heresies, relative to the Doctrine of the Holy Spirit, which have been published since the Christian Era ... (Albany, Elijah Torrey, Jun., E. & E. Hosford, printers, 1815), by Ambrose Serle (page images at HathiTrust)
Wissenschaftliche Rechtfertigung der christlichen Trinitätslehre gegen die Einwendungen ihrer neuesten Gegner : mit besonderer Rücksicht aus die Glaubenslehre des Dr. D. Fr. Strauss / (Wien : Braumüller & Seidel, 1846), by Jakob Zukrigl (page images at HathiTrust)
Discourses on the three creeds : and on the homage offered to our saviour, on certain and particular occasions during his ministry, as expressed in the evangelical writings, by the Greek term PROSKYNEŌ / (London : Printed for Baldwin, Cradock and Joy, 1819), by Edward Nares (page images at HathiTrust)
Visual representatives of the Trinity ; an historical survey. (Cooperstown, N.Y. : The Arthur H. Crist publishing co., 1917), by John Brainerd MacHarg (page images at HathiTrust)
al-Burhān al-sadīd fī ḥaqīqat al-tathlīth fī al-tawḥīd, thumma, Bayān tajassud al-kalimah al-Ilāhīyah wa-mā hūwá ʻalayhi min al-kayfīyah / (Bayrūt : al-Maṭbaʻah al-ʻUmūmīyah, 1869), by Lūwīs Katfākū and 880-05 (page images at HathiTrust)
A Scriptural defence of the doctrine of the trinity ; or, a check to modern Arianism, as taught by Unitarians, Hicksites, New Lights, Universalists and Mormons; and especially by a sect calling themselves "Christians" / (New York : Lewis Colby Rev. & Co., 1850), by Hiram Mattison (page images at HathiTrust)
Scripture testimony to the doctrine of the Trinity : in four sermons, preached before the University / (Cambridge : Printed at the Pitt Press, 1844), by Edmund Davy Mortlock (page images at HathiTrust)
Ausgewählte Schriften des heiligen Hilarius, Bischofs von Poitiers : aus dem Urtexte übersetzt, mit einer kurzen Biographie des Heiligen und einer Einleitung / (Kempten : J. Kösel, 1878), by Saint Hilary and Joseph Fisch (page images at HathiTrust)
A statement of reasons for not believing the doctrines of Trinitarians : concerning the nature of God and the person of Christ / (Cambridge [Mass.] : Brown, Shattuck, and Co., 1833), by Andrews Norton (page images at HathiTrust)
One God in one person only: and Jesus Christ a being distinct from God, dependent upon Him for His existence, and His various powers; maintained and defended. (Worcester [Mass.]: From the press of Isaiah Thomas, jun. September--, 1805), by John Sherman (page images at HathiTrust)
Jesus Christ, and Him crucified : being a view of the Trinity, the divinity of Christ, the atonement, and the character and influences of the Holy Spirit ; together with references to the great body of texts used by Magee, Simpson, and Jones / (Philadelphia [Penna.] : J. Crissy, 1822), by Benjamin Allen (page images at HathiTrust)
A statement of the trinitarian principle :bor, Law of tri-personality. (Boston : John P. Jewettt, 1853), by Ephraim Langdon Frothingham (page images at HathiTrust)
Some account of the origin and progress of trinitarian theology : in the second, third, and succeeding centuries, and of the manner in which its doctrines gradually supplanted the unitarianism of the primitive church / (Meadville, Pa. : Theological Press, 1853), by James Forrest (page images at HathiTrust)
Primitive Trinitarianism : examined and defended / (Bennington : Printed by D. Clark, 1826), by Elijah Bailey (page images at HathiTrust)
The rock of ages; or, Scripture testimony to the one eternal Godhead of the Father, and of the Son, and of the Holy Ghost. (London, Religious Tract Soc., 1860), by Edward Henry Bickersteth (page images at HathiTrust)
Trinitarian sermons preached to a Unitarian congregation / (Boston : J.P. Jewett, 1859), by William Leonard Gage (page images at HathiTrust)
Letters on the divine trinity, addressed to Henry Ward Beecher / (New York : Mason Brothers, 1860), by Benjamin Franklin Barrett (page images at HathiTrust)
Die Dreieinheit ein leicht begreifliches, überall gültiges Naturgesetz; der Schlüssel zur Einsicht in die Natur der Dinge : auch etwas Geschichtliches, dessen innere Quelle und allgemeiner Verlauf / (Zürich : E. Reisling, 1854), by W. von Bruchhausen (page images at HathiTrust)
The rock of ages : or, Scripture testimony to the one eternal Godhead of the Father, and of the Son, and of the Holy Ghost / (Philadelphia : Presbyterian Board of Publication, [189-?]), by Edward Henry Bickersteth (page images at HathiTrust)
A treatise on the character of Jesus Christ, and on the trinity in unity of the Godhead; with quotations from the primitive fathers, (Boston, Published by R. P. & C. Williams. Printed by N. Willis, 1814), by Ethan Smith (page images at HathiTrust)
Trinitarian faith examined; a collection of fifteen essays ... (Bost., American Unitarian Association, 1855), by American Unitarian Association (page images at HathiTrust)
A vindication of I John, V. 7. : from the objections of M. Griesbach : in which is given a new view of the external evidence, with Greek authorities for the authenticity of the verse, not hitherto adduced in its defence / (London : Printed by W. Hughes, sold by Rivingtons ..., 1821), by Thomas Burgess (page images at HathiTrust)
Twelve Monday lectures in Tremont Temple, Boston, U.S. ... / (London : R.D. Dickinson, 1877), by Joseph Cook (page images at HathiTrust)
The folly of opposing natural reason to the doctrine of the Trinity : a sermon preach'd before the University of Oxford, at St. Mary's, on Sunday, December the 30th, 1722 / (Oxford : Printed by L. Lichfield, for Charles Combes ; and are to be sold by James Knapton, Thomas Combes, and John Nicks, London, 1723), by George Coningesby (page images at HathiTrust)
An account of the Blessed Trinity, argued from the nature and perfection of the supream spirit, coincident with the scripture doctrine, in all the articles of the catholick creeds; together with its 1. Mystical 2. Foederal 3. Practical uses in the Christian religion ... (London, R. Baldwin, 1694), by William Burrough (page images at HathiTrust)
Letters to Edward Gibbon, author of the History of the decline and fall of the Roman Empire. (London : Printed for the author, and sold by Rivingtons [etc.], 1794), by George Travis (page images at HathiTrust)
Letters to Edward Gibbon, esq., author of the History of the decline, and fall, of the Roman Empire. (London : Printed, and sold, by C. F. and J. Rivington, MDCCLXXXV. (1785)), by George Travis (page images at HathiTrust)
The mystery of the Holy Trinity in oldest Judaism, (Philadelphia, McVey, 1916), by Frank McGloin (page images at HathiTrust)
Kitab-ı Miftah ul-esrar. ([Londra : Vilyam Vats Matbaası], 1861) (page images at HathiTrust)
Hādhihi risālah fī al-tawḥīd wa-al-tathlīth : wa-hiya jawāb li-risālah jāʼatnī khuṣūṣan min nawāḥī Sūriyā mimman lam yuʻarrifnī nafsah = at-Tawhïd oi-ttasliss. (Ṣaydā : Maṭbaʻah al-ʻIrfān, 1914) (page images at HathiTrust; US access only)
Tractatus de Sanctissima Trinitate (1, Quaest. XXVII-XLIII) / (Parisiis : P. Lethielleux, [1902]), by Alexis-M. Lépicier (page images at HathiTrust; US access only)
Altchristliche liturgische Stücke aus der Kirche Aegyptens nebst einem dogmatischen Brief des Bischofs Serapion von Thmuis, (Leipzig, J.C. Hinrichs, 1899), by of Thmuis Serapion and Georg Wobbermin (page images at HathiTrust; US access only)
Horæ solitaræ; or, Essays upon some remarkable names and titles of Jesus Christ occurring in the Old Testament and declarative of his essential divinity and gracious offices in the redemption of men; to which is annexed an essay, chiefly historical, upon the doctrine of the Trinity ... (Hartford : Silas Andrus, 1815), by Ambrose Serle (page images at HathiTrust)
The luminous unity : or, Letters addressed to the Rev. A. Guinzburg, a rabbi of Boston, Mass. (Philadelphia : Lippincott, 1877, c1873), by Matthew R. Miller and Aaron Ginzburg (page images at HathiTrust)
A statement of reasons for not believing the doctrines of Trinitarians, concerning the nature of God and the person of Christ. (Boston, American Unitarian Associations, 1872), by Andrews Norton and William Newell (page images at HathiTrust)
Novena a la Santísima Trinidad. (Guatemala, Marroquín, 1912) (page images at HathiTrust; US access only)
Istorii͡a dogmaticheskikh dvizhenīĭ v ėpokhu Vselenskikh soborov v svi͡azi s filosofskim uchenīi͡am togo vremeni. (Sergīev Posad : Tip. Sv.-Tr. Sergīevoĭ lavry, 1906-), by A. Spasskiĭ (page images at HathiTrust; US access only)
Discourses on the Divine Unity or, A Scriptural proof and demonstration of the one supreme deity, of the God and Father of all ; and of the subordinate character and inferior nature of our Lord Jesus Christ: with a confutation of the doctrine of a co-equal and consubstantial Trinity in unity ; and a full reply to the objections of Trinitarians / (London : Printed for D. Eaton ... by C. Stower, 1810), by William Christie (page images at HathiTrust)
Horae solitariae in two volumes, or, essays upon some remarkable names and titles of Jesus Christ : occurring in the Old Testament and declarative of his essential divinity and gracious offices in the redemption of men : to which is annexed an essay, chiefly historical, upon the doctrine of the Trinity. -- (London : Printed for Longman and Rees, W. Baynes, T. Hurst, Crosby and Letterman ..., 1804), by Ambrose Serle (page images at HathiTrust)
The catholic doctrine of a Trinity : proved by above an hundred short and clear arguments, expressed in the terms of the Holy Scripture, compared in a manner entirely new and digested under the four following titles: 1. The divinity of Christ. 2. The divinity of the Holy Ghost. 3. The plurality of persons. 4. The Trinity in unity. With a few reflections, occasionally interspersed, upon some of the Arian writers, particularly Dr. S. Clarke: to which is added, A letter to the common people, in answer to some popular arguments against the Trinity. (London : Printed ...for T. Hamilton, ... R. Ogle, ... J. Ogle, ... and M. Ogle, 1810), by William Jones (page images at HathiTrust)
View of the Trinity : A treatise on the character of Jesus Christ, and on the trinity in unity of the Godhead; with quotations from the primitive Fathers / (Poultney (Vt.) : Published and printed by Smith & Shute, 1824), by Ethan Smith (page images at HathiTrust)
The Christian layman : or, The doctrine of the Trinity fully considered, and adjudged according to the Bible / (Mobile : Doubleday and Sears; New York : C.C. Francis, and Wiley & Putnam, 1840), by Benjamin Parsons (page images at HathiTrust)
Die christliche lehre von der Dreieinigkeit und menschwerdung Gottes in ihrer geschichtlichen entwicklung / (Tübingen, C.F. Oslander, 1841-43), by Ferdinand Christian Baur (page images at HathiTrust)
Die Lehre von der Trinität in ihrer historischen Entwickelung / (Hamburg : F. und A. Perthes, 1844), by Georg August Meier (page images at HathiTrust)
The true believers̓ defence against charges preferred by Trinitarians for not believing in the divinity of Christ, the deity of Christ, the trinity, &c. / (Boston : Benjamin H. Greene, 1837), by Charles Morgridge (page images at HathiTrust)
Messiahs' proper deity : argued from Scripture; also His atonement; and the divinity of the Holy Spirit : with a few strictures on the way of a sinners̓ acceptance with God, and on some Unitarian publications / (Glasgow : Printed by D. MK'enzie, 1807), by Niel Douglas and Theophilus Browne (page images at HathiTrust)
Bible news: or, Sacred truths relating to the living God, His only Son and Holy Spirit, illustrated and defended in a continued series of letters and inquiries. (Boston: Published by Bradford & Read. Sold also by Cushing & Appleton, and T. Porter, Salem ; C. Norris & Co. Exeter; Lord, Hyde & Co. Portland; E. Goodale, Hallowell; D. Coolidge, Concord; I. Thomas, Worcester; A. Sherman, jun. New-Bedford; J. Brewster, Providence; and A. Finley, Philadelphia., 1812), by Noah Worcester (page images at HathiTrust)
Bible news : or sacred truths relating to the living God, His only son, and holy spirit ... / (Boston : Printed and published by Thomas B. Wait, 1825), by Noah Worcester (page images at HathiTrust)
The evangelists manual : or a guide to trinitarian Universalists in the city of Charleston : to which is prefixed five introductory sections and the eighteen articles of the church concluded with thirteen propositions and an appeal to the Christian world with a copious index / (Charleston, S. C. : Printed by A. F. Cunningham, 1829), by S.C. Association of the primitive apostolic church of Trinitarian Universalists. Charleston (page images at HathiTrust)
An examination of the divine testimony concerning the character of the son of God. ... (Hartford [Conn.]: Printed for the author., 1824), by Henry Grew (page images at HathiTrust)
Statement and evidence of the doctrine of the Trinity, in three lectures. ... (Dover [N.H.]: Published by Samuel C. Stevens. Printed by George W. Ela., 1829), by Hubbard Winslow (page images at HathiTrust)
The true believers̓ defence against charges preferred by Trinitarians : for not believing in the divinity of Christ, the deity of Christ, the trinity, &c. / (New Bedford : William Howe, 1837), by Charles Morgridge (page images at HathiTrust)
The Scriptural doctrine of the Trinity / (Dover, N.H. : Trustees of the Freewill Baptist Connection, 1842), by M. W. Alford (page images at HathiTrust)
Hysterai phrontides, or, The last thoughts of Dr. Whitby : containing his correction of several passages in his commentary on the New Testament : to which are added, five discourses ... (London : Printed for and sold by the Unitarian Association, 1841), by Daniel Whitby (page images at HathiTrust)
The true Messiah, in Scripture light; or The unity of God, and proper sonship of Jesus Christ, affirmed and defended. / (Union Mills, N.Y. : Published by the Christian General Book Association. Printed at the Office of the Christian Palladium., 1837), by David Millard and N.Y.) Palladium Office (Union Mills, contrib. by Christian General Book Association (page images at HathiTrust)
Die Lehre von der Göttlichen Dreieinigkeit nach dem Heiligen Gregor von Nazianz, dem theologen, mit berücksichtigung der älteren und neueren Darstellungen dieses Dogma. (Regensburg, G.J. Manz, 1850), by Joseph Hergenröther and of Nazianzus Gregory (page images at HathiTrust)
The doctrine of the trinity in unity : deduced from the discriminative terms employed to designate the divine being by the inspired writers of the Old Testament / (London : J.G. and F. Rivington, 1833), by Member of the Church of England (page images at HathiTrust)
Unitarian principles confirmed by Trinitarian testimonies : being selections from the works of eminent theologians belonging to orthodox churches, with introductory and occasional remarks / (Boston : American Unitarian Association, 1867), by John Wilson (page images at HathiTrust)
The church of the first three centuries: or, Notices of the lives and opinions of the early fathers, with special reference to the doctrine of the Trinity; (Boston, H. B. Fuller, 1869), by Alvan Lamson (page images at HathiTrust)
Unitarian principles confirmed by Trinitarian testimonies : being selections from the works of eminent theologians belonging to orthodox churches, with introductory and occasional remarks / (Boston : American Unitarian Association, 1890), by John Wilson and American Unitarian Association (page images at HathiTrust)
Trisagio a la Santisima Trinidad. (Guatemala, C.A., San Antonio, 1924) (page images at HathiTrust; US access only)
A Scriptural defence of the doctrine of the trinity : or a check to modern Arianism as taught by Unitarians, Campbellites, Hicksites, New Lights, Universalists and Mormons, and especially by a sect calling themselves "Christians" / (New York : L. Colby, 1848), by Hiram Mattison (page images at HathiTrust)
Die christliche Lehre von der Dreieinigkeit und Menschwerdung Gottes in ihrer geschichtlichen Entwicklung / (Hildesheim ; New York : Olms, 2005), by Ferdinand Christian Baur (page images at HathiTrust)
Unitarianism defined : the Scripture doctrine of the Father, Son and Holy Ghost. A course of lectures / (Boston : Walker, Wise & Company, 1860), by Frederick A. Farley (page images at HathiTrust)
Evangelical Christianity considered : and shewn to be synonimous with Unitarianism, in a course of lectures on some of the most controverted points of Christian doctrine addressed to Trinitarians / (London : Printed by C. Stower, 1813), by John Grundy (page images at HathiTrust)
John Milton's last thoughts on the Trinity : extracted from his posthumous work entitled "A treatise on Christian doctrine compiled from the Holy Scriptures alone," lately published by royal command. (London : R. Taylor, 1828), by John Milton (page images at HathiTrust)
Letters on the trinity and on the divinity of Christ : addressed to the Rev. William E. Channing in answer to his sermon On the doctrines of Christianity / (Aberdeen : George King, 1834), by Moses Stuart (page images at HathiTrust)
A statement of reasons for not believing the doctrines of Trinitarians : concerning the nature of God and the person of Christ / (Boston : American Unitarian Association, 1870), by Andrews Norton and William Newell (page images at HathiTrust)
A statement of reasons for not believing the doctrines of Trinitarians : concerning the nature of God and the person of Christ / (Boston : American Unitarian Association, 1867), by Andrews Norton and William Newell (page images at HathiTrust)
Bible news : or sacred truths relating to the living God, His only son, and holy spirit / (Boston : Crosby, Nichols, & Co., 1854), by Noah Worcester (page images at HathiTrust)
An examination of the principal arguments claimed in support of the doctrines of total hereditary depravity, the trinity, and atonement / (Springpield [i.e. Springfield], Ohio : Gospel Herald Office, 1852), by James M. Holland (page images at HathiTrust)
The rock of ages : or, Scripture testimony to the one eternal Godhead of the Father, and of the Son, and of the Holy Ghost / (Boston : E.P. Dutton and company, 1860), by Edward Henry Bickersteth (page images at HathiTrust)
Scripture proofs and Scriptural illustrations of Unitarianism. (London : Chapman bros., 1846), by John Wilson (page images at HathiTrust)
A statement of reasons for not believing the doctrines of Trinitarians : concerning the nature of God and the person of Christ / (Boston : American Unitarian Association, 1869), by Andrews Norton and William Newell (page images at HathiTrust)
A statement of reasons for not believing the doctrines of Trinitarians : concerning the nature of God and the person of Christ / (Boston : Walker, Wise, 1859), by Andrews Norton and William Newell (page images at HathiTrust)
Unitarian principles confirmed by Trinitarian testimonies : being selections from the works of eminent theologians belonging to orthodox churches, with introductory and occasional remarks / (Boston : American Unitarian association, 1859), by John Wilson (page images at HathiTrust)
Scripture proofs and Scriptural illustrations of Unitarianism / ([New York] : Unitarian Association of the State of New York, 1847), by John Wilson (page images at HathiTrust)
An essay on fundamentals in religion / (London : Printed for and sold by the Unitarian Association, also by R. Hunter, 1835), by James Foster and Samuel Clarke (page images at HathiTrust)
An unpublished essay of Edwards on the Trinity : with remarks on Edwards and his theology / (New York : Charles Scribner's Sons, 1903), by Jonathan Edwards, Theodore Dwight Woolsey, and George Park Fisher (page images at HathiTrust)
Some account of the origin and progress of trinitarian theology : in the second, third, and succeeding centuries, and of the manner in which its doctrines gradually supplanted the unitarianism of the primitive church : compiled from the works of various theological and historical writers / (Boston : Nichols and Noyes, 1871), by James Forrest (page images at HathiTrust)
Discussion of the doctrine of the trinity : between Luther Lee, Wesleyan minister, and Samuel J. May, Unitarian, minister / (Syracuse, N.Y. : Wesleyan Book Room, 1854), by Luther Lee, Lucius C. Matlack, and Samuel J. May (page images at HathiTrust)
Historical and artistic illustrations of the trinity : showing the rise, progress and decline of the doctrine with elucidatory engravings / (London : Simkin, Marshall, 1846), by J. R. Beard (page images at HathiTrust)
Le père, le fils et le saint-esprit : sermon prononcé au temple national de la Chaux-de-Fonds, le dimanche 19 juin 1870 / (Paris : Joel Cherbuliez ; Genève : A. Cherbuliez, 1870), by Athanase Coquerel (page images at HathiTrust)
Biblical Trinity. (Hartford, Conn., 1850), by Theophilus (page images at HathiTrust)
Ausgewählte Schriften des heiligen Cyrillus, Erzbischofs und Patriarchen von Alexandria / (Kempten : Jos. Kösel, 1879), by Saint Cyril and Heinrich Hayd (page images at HathiTrust)
The new discussion of the Trinity ; containing notices of Professor Huntington's recent defence of that doctrine, reprinted from "The Christian examiner", "The Monthly religious magazine", "The Monthly journal of the Unitarian association", and "The Christian register". (Boston, Walker, Wise, and Company, for the American Unitarian Association, 1860), by Orville Dewey, Thomas Starr King, F. D. Huntington, and American Unitarian Association (page images at HathiTrust)
Christianity and the trinitarian doctrine / (Boston : Meador, 1936), by William Edward Smith (page images at HathiTrust; US access only)
Jesus and the Trinity. (New York, Abingdon Press, [1960]), by Walter Russell Bowie (page images at HathiTrust; US access only)
The doctrine of the trinity : briefly and impartially examined in the light of history and philosophy / (West Brookfield, Mass. : Merriam & Chapin, Printers, 1847), by William Batchelder Greene and printer Merriam & Chapin (page images at HathiTrust)
Hādhihi risālah fī al-tawḥīd wa-al-tathlīth : wa-hiya jawāb li-risālah jāʾatnī khuṣūṣan min nawāḥī Sūrīyā mimman lam yuʻarrifunī nafsāh. (Ṣaydā : Maṭbaʻat al-ʻIrfān, 1332 {1913 or 1914]) (page images at HathiTrust; US access only)
L'idee morale des dogmes de la T.S. Trinite, de la divinite de Jesus-Christ et de la Redemption. Trans. from the 3d Russ. ed. (Paris, Vrin, 1910), by S. Em Antoine (page images at HathiTrust; US access only)
A letter to Rev. Mr. Channing : in favor of the doctrine of the Trinity, and in opposition to the sentiments, contained in his Baltimore sermon. (Boston : S.T. Goss, printer, 1819), by Layman, A layman, Benjamin Austin, and Moses Stuart (page images at HathiTrust)
Trinitarischer Glaube und Christusbekenntnis in der alten Kirche; neue Untersuchungen zur Geschichte des apostolischen Glaubensbekenntnisses. (Gütersloh, C. Bertelsmann, 1920), by Johannes Haussleiter (page images at HathiTrust; US access only)
Beyan-i hakikatin ikinci faslı. (Dersaadet : Matbaa-yi Osmaniye, 1303 [1887]), by Ali bin Ahmet Haydar (page images at HathiTrust; US access only)
Memoir of the controversy respecting the three heavenly witnesses, I John v. 7 : including critical notices of the principal writers on both sides of the discussion / (New York : James Miller, 1866), by William Orme (page images at HathiTrust)
Letters addressed to relatives and friends, chiefly in reply to arguments in support of the doctrine of the Trinity. (Boston : James Munroe and Company, 1845), by Mary Dana Shindler and Jared Sparks (page images at HathiTrust)
Scripture proofs and Scriptural illustrations of Unitarianism : with an examination of the alleged Biblical evidence for the doctrine of a triune God, the proper deity of Christ and the divine personality of the Holy Spirt distinct from the father ... / (London : John Mardon, 1837), by John Wilson (page images at HathiTrust)
Some account of the origin and progress of trinitarian theology : in the second, third, and succeeding centuries, and of the manner in which its doctrines gradually supplanted the unitarianism of the primitive church / (Boston : Crosby, Nichols, and Co., 1856), by James Forrest (page images at HathiTrust)
Some account of the origin and progress of trinitarian theology : in the second, third, and succeeding centuries, and of the manner in which its doctrines gradually supplanted the unitarianism of the primitive church; compiled from the works of various theological and historical writers / (Boston : Nichols and Noyes, 1867), by James Forrest (page images at HathiTrust)
The doctrines of Original Sin and the Trinity : discussed in a correspondence between a clergyman of the Episcopal Church, in England and a layman of Boston, U.S. (Boston : J.H. Eastburn's Press, 1859), by W. E. Heygate and Nathan Appleton (page images at HathiTrust)
The great mystery : How can three be one? / (London: William Macintosh, 1863), by Christian William Henry Pauli (page images at HathiTrust)
Bible news; or, Sacred truths relating to the living God, His only Son, and Holy Spirit. (New York, B. Parsons, 1851), by Noah Worcester (page images at HathiTrust)
The Trinity. (Chicago, S.C. Griggs and company, 1874), by F. Holiday Burris and Joseph Haven (page images at HathiTrust)
Unitarian principles confirmed by Trinitarian testimonies; being selections from the works of eminent theologians belonging to orthodox churches. (Boston, American Unitarian association, 1855), by John Wilson and American Unitarian Association (page images at HathiTrust)
The Christian Trinity : the doctrine of God, the Father, Jesus Christ, and the Holy Spirit : a discourse preached in Harvard Church, Charlestown, February 5, 1860 / (Charlestown : Abram E. Cutter, 1860), by George Edward Ellis and Boston Harvard Church (Charlestown (page images at HathiTrust)
A new plea for the authenticity of the text of the three heavenly witness; or, Porson's letters to Travis eclectically examined and the external and internal evidences for 1 John V, 7 eclectically re-surveyed / (Cambridge [Eng.] : Deighton, Bell ... [etc.], 1867), by Charles Forster (page images at HathiTrust)
The Trinity : its Scripture foundation : and the early construction of church doctrines respecting it / (Springfield : Samuel Bowles, 1849), by George F. Simmons (page images at HathiTrust)
Scripture proofs and scriptural illustrations of Unitarianism / (Boston : James Munroe, 1846), by John Wilson (page images at HathiTrust)
Letter to the so-called "Boston churches," which are in truth only parts of one church. (Boston, Wm. Crosby and H.P. Nichols, 1845), by George F. Simmons (page images at HathiTrust)
Die speculative Trinitätslehre des späteren Orients : eine religions-philosophische Monographie aus handschriftlichen Quellen der Leydener, Oxforder und Berliner Bibliothek / (Berlin : F. Dümmler, 1826), by August Tholuck (page images at HathiTrust)
The concessions of Trinitarians : being a selection of extracts from the writings of the most eminent biblical critics and commentators / (Boston : James Munroe, 1845), by John Wilson (page images at HathiTrust)
Epitome theologiae christianae : ex codicibus Monasterii S. Emmeramni Ratisbonensis, in bibliotheca aulica monacensi asservatis / (Berolini (Berlin) : F.A. Herbig, 1835), by Peter Abelard and F. H. Rheinwald (page images at HathiTrust)
The threefold fellowship and the threefold assurance: an essay in two parts. (Richmond, Va., The Presbyterian committee of publication, [c1902]), by B. M. Palmer (page images at HathiTrust)
A defence of the Trinitarian system, in twenty-four sermons : in which the leading controversial points between Trinitarians and anti-Trinitarians are stated and discussed / (Utica, [NY] : Printed by Williams, 1822), by David Harrowar (page images at HathiTrust)
The catholic doctrine of a Trinity, proved by above an hundred short and clear arguments, expressed in the terms of the Holy Scripture ... and digested under the four following titles: 1. The divinity of Christ. 2. The divinity of the Holy Ghost. 3. The plurality of persons. 4. The Trinity in unity. With a few reflections ... upon some of the Arian writers, particularly Dr. S. Clarke: to which is added, A letter to the common people, in answer to some popular arguments against the Trinity. (New York: Published by Whiting and Watson, 1813), by William Jones (page images at HathiTrust)
An investigation of the Trinity of Plato and of Philo Judaeus : and of the effects which an attachment to their writings had upon the principles and reasonings of the fathers of the Christian church / (Cambridge : University Press, [pref. 1853]), by Caesar Morgan and Hubert Ashton Holden (page images at HathiTrust)
Ueber die katechetische und homiletische Behandlung der Lehre von der göttlichen Dreieinigkeit : zwei Abhandlungen / (Hamburg : Friedrich & Andreas Perthes, 1853), by Karl Heinrich Sack (page images at HathiTrust)
Contemplations on the God of Israel, in a series of letters to a friend / (London : Printed by T. Bensley, 1802), by William Huntington (page images at HathiTrust)
Histoire du dogme de la trinité : des origines a saint Augustin/ (Paris : G. Beauchesne, 1919-19--?), by Jules Lebreton (page images at HathiTrust; US access only)
Memoir of the controversy respecting the three heavenly witnesses, I John v. 7 : including critical notices of the principal writers on both sides of the discussion / (Boston : Nichols and Noyes, 1869), by William Orme (page images at HathiTrust)
The holy Trinity; a study of the self-revelation of God, (London, New York [etc.] Longmans, Green and co., 1916), by Louis George Mylne (page images at HathiTrust; US access only)
The Trinity / (Glen Rock, N.J. : Paulist Press, 1963), by Gerard S. Sloyan (page images at HathiTrust; US access only)
Novena to the most Holy Trinity to obtain favors through the intercession of the servant of God, Blessed Thérèse Couderc. ([New York? : s.n., 1945?]) (page images at HathiTrust; US access only)
A discourse on the doctrine of the Trinity, in three sermons delivered at Mattapoisett, Rochester, in Oct. and at New Bedford, Nov. 22, 1835. (New Bedford, S. Underwood, 1836), by Thomas Robbins (page images at HathiTrust)
An Apology for the Doctrine of the Trinity : being a chronological view of what is recorded concerning, the person of Christ, the Holy Spirit, and the blessed Trinity, whether in the sacred writings, or in Jewish, Heathen, and Christian authors ... (Bacclesfield : Printed and sold by Edward Bayley, 1798), by David Simpson (page images at HathiTrust)
Bible news; or, Sacred truths relating to the living God, his only Son and Holy Spirit; illustrated and defended in a continued series of letters and inquiries. (Cincinnati, Ohio, Published by John Longley, by N. & G. Guilford, 1826), by Noah Worcester (page images at HathiTrust)
Some account of the origin and progress of trinitarian theology : in the second, third, and succeeding centuries, and of the manner in which its doctrines gradually supplanted the unitarianism of the primitive church : compiled from the works of various theological and historical writers / (Glasgow : Andrew Rutherglen & Co., 1836), by James Forrest (page images at HathiTrust)
Das Dogma von der Dreieinigkeit und Gottmenschheit in seiner geschichtlichen Entwicklung. (Tübingen, J. C. B. Mohr, 1905), by Gustav Krüger (page images at HathiTrust; US access only)
Expository lectures on the principal passages of the Scriptures which relate to the doctrine of the Trinity. (Boston, J. Munroe and company, 1845), by George Washington Burnap (page images at HathiTrust)
Observations concerning the Scripture oeconomy of the Trinity and covenant of redemption / (New York : Charles Scribner's Sons, 1880), by Jonathan Edwards and Egbert Coffin Smyth (page images at HathiTrust)
A statement of reasons for not believing the doctrines of Trinitarians, concerning the nature of God and the person of Christ. (Boston, American Unitarian association, 1880), by Andrews Norton and William Newell (page images at HathiTrust)
The Blessed Trinity / (London : Catholic Truth Society, 1925), by Charles F. Blount (page images at HathiTrust)
Theologia, oder Geistliche Gespräche/ von unterschiednen Artickeln der Christlichen Religion/ Jnsonderheit von der warhafftigen und heiligen Drei-Einigkeit/ angefangen von zween Handwercks-Leuten/ welche aber nach dem sie zu tieff in die Schrifft kommen/ ihre Seelsorger zu Hülffe geruffen/ von welchen zwar in ihrer beyderseits Gegenwart drey gantzer Tage lang disputiret/ aber der Streit nicht beygeleget worden: sondern weil beyde Parten vermeinet gewonnen zu haben/ sind sie Raths und einig worden/ aller Welt Urtheil ihre gehaltene disputation (Freystadt in Verlegung der Authoren., Jm Jahr aLs DIe haVbt IrrthVMer begVnten zV VVanCken [1682]), by Johann Preuss (page images at HathiTrust)
ʻEdot be-Yaʻakov ueber die mysterien, welche enthalten sind in den zur Bezeichnung Gottes dienenden drei Vocalbuchstaben : ein Versuch aus den hebräischen Urkunden und späteren rabbinischen Schriften den Ursprung und wahren Begriff der Trinitäts-Idee nachzuweisen und zu entwickeln, als Beitrag z ur Würdigung des Judenthums und des rein biblischen Christenthums von einem jüdischen Geistlichen. (Anclam : W. Dietze, 1848) (page images at HathiTrust)
The principal objections against the doctrine of the Trinity, and a portion of the evidence on which that doctrine is received by the Catholic Church, reviewed, in eight sermons preached before the University of Oxford, in the year MDCCCXXXVII, at the lecture founded by the Rev. John Bampton, M.A., Canon of Salisbury. (Oxford, Printed for the author, sold by J. H. Parker, 1837), by Thomas S. L. Vogan (page images at HathiTrust)
Das Wirken des Dreieinigen Gottes / (Mainz : F. Kirchheim, 1885), by Herman Schell (page images at HathiTrust)
La doctrine de la Trinité, (A Toulouse, Chez K.-Cadaux, 1889), by William Jones (page images at HathiTrust)
Sancti Hilarii Pictaviensis Episcopi De trinitate. (Oeniponti : Libraria Academica Wagneriana, 1887), by Saint Hilary (page images at HathiTrust)
Abaelards 1121 zu Soissons verurtheilter Tractatus de unitate et trinitate divina; (Freiburg im Breisgau, etc., 1891), by Peter Abelard and Remigius Stölze (page images at HathiTrust)
Ex ungue leonem, ofte, Dr. Doedes' methode van symbool-uitlegging op een enkel cardinaal punt getoetst / (Amsterdam : Kruyt, 1882), by Abraham Kuyper (page images at HathiTrust)
The book of Saint Basil the Great, Bishop of Cappadocia, on the Holy Spirit. Written to Amphilochius, Bishop of Iconium, against the Pneumatomachi; (Oxford, Clarendon Press, 1892), by Saint Basil, ed. by C. F. H. Johnston (page images at HathiTrust)
Johannis Wyclyf Tractatus de Trinitate. ([Boulder, Colo.] University of Colorado Press, 1962), by John Wycliffe, ed. by Allen duPont Breck (page images at HathiTrust; US access only)
Of worshipping the Holy Ghost expresly, as a person equal to, and distinct from the Father. ([London?] : [publisher not identified], [between 1690 and 1699?]) (page images at HathiTrust)
The doctrine of the Catholic Church and the Church of England concerning the Blessed Trinity, explained and asserted : against the dangerous heterodoxes in a sermon by Dr. William Sherlock, before my Lord Mayor and the Court of Aldermen. (London : Printed for Richard Baldwin in Warwick-lane, 1697) (page images at HathiTrust)
An historical account of the controversies that have been in the Church, concerning the doctrine of the Holy and everblessed Trinity: in eight sermons, preached at the cathedral-church of St. Paul, London, in the years 1723 and 1724. At the lecture founded by the worthy Lady Moyer, deceased. (London, Printed for T. Ward and C. Rivington at the Bible and Crown, 1725), by William Berriman (page images at HathiTrust)
The catholic doctrine of a Trinity. (Philadelphia, G. D. M'Cuenn, 1838), by William Jones (page images at HathiTrust)
An essay on the doctrine of the Trinity: (London, [etc., etc.], 1815), by James Kidd (page images at HathiTrust)
Tal ew aṛnel / (Kostandnupolis : Tpagrutʻiwn A. Hakob Pōyachean, 1894), by Pʻ. P. Pʻaur (page images at HathiTrust)
The divine trinunity of the Father, Son, and Holy Spirit: or, The blessed doctrine of the three coessentiall subsistents in the eternall Godhead without any confusion or division of the distinct subsistences, or multiplication of the most single and entire Godhead... (London, Printed by T. R. and E. M. for S. Gellibrand, 1650), by Francis Cheynell (page images at HathiTrust)
A vindication of the doctrine of the holy and ever blessed Trinity, and the incarnation of the Son of God. Occasioned by the Brief notes on the creed of St. Athanasius, and the Brief history of the Unitarians, or Socinians, and containing an answer to both. (London, Printed for W. Rogers, 1690), by William Sherlock (page images at HathiTrust)
Milton on the Son of God and the Holy Spirit, from his Treatise on Christian doctrine; (London, British & foreign Unitarian association, 1908), by John Milton, Alexander Gordon, and British and Foreign Unitarian Association, trans. by Charles Richard Sumner (page images at HathiTrust)
A sermon on the doctrine of the Trinity, (Providence, J.F. Moore, 1846), by Jonathan Swift (page images at HathiTrust)
A short history of Valentinus Gentilis, the tritheist, tryed, condemned, (London, Printed, by E. Whitlock, 1696), by Benedictus Aretius and Robert South (page images at HathiTrust)
Sancta Trinitas, unus Deus. Vierzehn vorträge gehalten bei den Priester-exercitien in Köni grätz vom 25. bis 29. august 1884, (Prag, Cyrillo-method'schen buchdruckerei (J. Zeman & comp.), 1884), by Eduard Tersch and Königgrätz. Priester-exercitien (page images at HathiTrust)
The Scripture doctrine of the Trinity vindicated; in opposition to Mr. Watts's scheme of one divine person and two divine powers. (London, Printed for J. Roberts, 1728), by Abraham Taylor (page images at HathiTrust)
Jehovah-Jesus : the oneness of God : the true Trinity / (New York : Dodd, Mead & company for the author, 1880), by Robert Dodd Weekes (page images at HathiTrust)
The form & origin of Milton's antitrinitarian conception ... (London, Ont., Advertiser printing co., 1911), by Louis Aubrey Wood (page images at HathiTrust; US access only)
Tractatus de Trinitate. Now first edited from the manuscripts with critical introd. and notes, ([Boulder] University of Colorado Press, 1162 [i.e. 1962]), by John Wycliffe, ed. by Allen duPont Breck (page images at HathiTrust)
Die trinitarische Lehrdifferenz zwischen der abendlandischen und der morgenlandischen Kirche : eine dogmengeschichtliche Untersuchung / (Bonn : Eduard Weber, 1876), by Joseph Langen (page images at HathiTrust)
Philosophie de la révélation; le verbe, ou, La raison absolue différentiellement personnifiée dans l'universal. 2. essai, suivi de quelques éclaircissements. (Paris, Impr. d'E. Duverger, 1851) (page images at HathiTrust)
Testimonies of the ante-Nicene fathers to the doctrine of the Trinity and of the divinity of the Holy Ghost. (Oxford, The University press, 1831), by Edward Burton (page images at HathiTrust)
Evolution and the doctrine of the Trinity, (Cambridge, The University press, 1918), by Stewart Andrew McDowall (page images at HathiTrust)
The answer of the Earl of Nottingham to Mr. Whiston's letter to him, concerning the eternity of the Son of God, and of the Holy Ghost ... (London, Printed for E. Valentine, 1721), by Daniel Finch Nottingham (page images at HathiTrust)
The ethnic trinities and their relations to the Christian Trinity a chapter in the comparative history of religions / (Boston : Houghton, Mifflin, 1901), by Levi L. Paine (page images at HathiTrust)
The great mystery, two studies on the same subject, one in the book of Revelation, the other in the book of nature, (Philadelphia : G.W. Jacobs & co., [c1901]), by Elizabeth Miller Jefferys (page images at HathiTrust)
The being of God as unity and trinity / (Boston ; New York : Houghton, Mifflin, 1896 (Cambridge, Mass. : Riverside Press)), by Peter Henry Steenstra (page images at HathiTrust)
Wiederherstellung des Christentums. (Wiesbaden : C. Limbarth, 1895-96), by Michael Servetus and Bernhard Spiess (page images at HathiTrust)
Philosophy of Trinitarian doctrine: a contribution to theological progress and reform, (New York, G. P. Putnam's sons, 1875), by Aaron G. Pease (page images at HathiTrust)
Tertullian against Praxeas, (London, Society for Promoting Christian Knowledge; New York, Macmillan, 1920), by Tertullian and Alexander Souter (page images at HathiTrust; US access only)
Tou Hagiou Athanasiou Kata Areianōn logoi = The orations of St. Athanasius against the Arians : according to the Benedictine text / (Oxford : Clarendon Press, 1873), by Saint Athanasius and William Bright (page images at HathiTrust)
Works on the Trinity : a new translation. (Oxford : J. H. Parker, 1851-1855), by George Bull (page images at HathiTrust)
The rock of ages : or, Scripture testimony to the one eternal Godhead of the Father, and of the Son, and of the Holy Ghost / (Philadelphia : Presbyterian board of publication, [187-]), by Edward Henry Bickersteth and Mass.) American Tract Society (Boston (page images at HathiTrust)
The church of the first three centuries : or, Notices of the lives and opinions of the early Fathers, with special reference to the doctrine of the Trinity; illustrating its late origin and gradual formation. (Boston : H.B. Fuller, 1873), by Alvan Lamson (page images at HathiTrust)
A statement for reasons for not believing the doctrines of Trinitarians, concerning the nature of God and the person of Christ / (Boston : Walker, Wise, and company, publishers for the American unitarian association, 1859), by Andrews Norton and William Newell (page images at HathiTrust)
Unitarian principles confirmed by Trinitarian testimonies : being selections from the works of eminent theologians belonging to orthodox churches. With introductory and occasional remarks / (Boston : Walker, Wise, and company, 1864), by John Wilson and American Unitarian Association (page images at HathiTrust)
De Trinitatis erroribus : libri septem /, by Michael Servetus and Johann Setzer (page images at HathiTrust)
The Deity : (London, Hamilton, Adams, & co., 1877), by William Cooke (page images at HathiTrust)
The church of the first three centuries: or, Notices of the lives and opinions of some of the early Fathers, with special reference to the doctrine of the Trinity; illustrating its late origin and gradual formation. (Boston, Walker, Wise, and Co., 1860), by Alvan Lamson (page images at HathiTrust)
A general view of the arguments for the unity of God; and against the divinity and preexistence of Christ; from reason, from the Scriptures, and from history. (London, Printed for Johnson & co. and D. Eaton, 1812), by Joseph Priestley (page images at HathiTrust)
The catholic doctrine of a Trinity, (Philadelphia Printed by D. Dickinson, 1818), by William Jones (page images at HathiTrust)
Der dreieinige Gott in religionshistorischer beleuchtung, (Kobenhavn, Gyldendalske Boghandel, Nordisk Forlag, 1922-), by Ditlef Nielsen (page images at HathiTrust; US access only)
Histoire du dogme de la Trinité des origines à saint Augustin, ([Paris, G. Beauchesne & cie, 1910]-1928), by Jules Lebreton (page images at HathiTrust; US access only)
Harmony of some revelations in nature and in grace; introduction to Kinship of God and man. An attempt to formulate a thorough-going trinitarian theology, (Washington, Ga., [c1908]), by John J. Lanier (page images at HathiTrust; US access only)
Conferences on the Blessed Trinity. (New York, The Catholic publication society co., 1882), by Jeremiah Joseph O'Connell (page images at HathiTrust)
[Christian pamphlets. ([United States : s.n., 1851-1864]), by C. A. Bartol, William A. Stearns, Andrew P. Peabody, Joseph Albree Gilmore, Asa D. Smith, Mark Hopkins, Richard S. Storrs, Thomas Starr King, Henry Boynton Smith, William Adams, William R. Williams, Theodore Parker, Nehemiah Adams, and Massachusetts Bible Society. Annual report. 1852. 1852 (page images at HathiTrust)
The new discussion of the Trinity; containing notices of Professor Huntington's recent defence of that doctrine ... (Boston, American Unitarian Association, 1867), by Thomas Starr King and Orville Dewey (page images at HathiTrust)
Gloria patri; or, Our talks about the trinity. (New York, Thomas Whitaker, 1892), by James Morris Whiton (page images at HathiTrust)
Bible news, of the Father, Son, and Holy Spirit : in a series of letters. In four parts. I. On the unity of God. II. On the real divinity and glory of Christ. III. On the character of the Holy Spirit. IV. An examination of difficult passages of Scripture. The whole addressed to a worthy minister of the gospel / (Concord : Printed by George Hough, 1810), by Noah Worcester (page images at HathiTrust)
A critical history of the evolution of trinitarianism, and its outcome in the new Christology. (New York, Houghton, Mifflin and company, 1900), by Levi L. Paine (page images at HathiTrust)
The origin of the doctrine of the Trinity, a popular exposition, (Manchester, The University Press; London, New York [etc.] Longmans, Green & company, 1919), by J. Rendel Harris (page images at HathiTrust)
New criticisms on the celebrated text, 1 John V. 7. "For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost; and these three are one." A synodical lecture, (London, C. and J. Rivington [etc.], 1829), by Franz Anton Knittel and William Alleyn Evanson (page images at HathiTrust)
Discourses on the principal points of the Socinian controversy. (Andover, Published and sold by Mark Newman, Flagg and Gould, Printers, 1815), by Ralph Wardlaw (page images at HathiTrust)
Unitarian principles confirmed by Trinitarian testimonies; being selections from the works of eminent theologians belonging to orthodox churches. (Boston, American Unitarianassociation, 1883), by John Wilson and American Unitarian Association (page images at HathiTrust)
Trisagio quen carcararag (en Ilocano) / (Malabon : Tipog-Litog del Asilo de Huerfanos de Ntra. Sra. de Consolacion, 1897), by Justo Claudio Fojas and American Philosophical Society. Library (page images at HathiTrust; US access only)
Istorīi︠a︡ dogmaticheskikhʺ dvizhenīĭ vʺ ėpokhu vselenskikhʺ soborovʺ : (vʺ svi︠a︡zi sʺ filosofskimi uchenīi︠a︡mi togo vremeni) /, by A. Spasskiĭ (page images at HathiTrust; US access only)
The treatise of Novatian, On the Trinity, (London, Society for promoting Christian knowledge; New York, The Macmillan company, 1919), by Herbert Moore (page images at HathiTrust; US access only)
Trisagio Quen Carcararag (in Iloko), by Justo Claudio Fojas (Gutenberg ebook)
An apology for writing against Socinians, in defence of the doctrines of the Holy Trinity and incarnation in answer to a late earnest and compassionate suit for forbearance to the learned writers of some controversies at present / by William Sherlock ... (London : Printed for Will. Rogers ..., 1693), by William Sherlock (HTML at EEBO TCP)
The present state of the Socinian controversy, and the doctrine of the Catholick fathers concerning a trinity in unity by William Sherlock ... (London : Printed for William Rogers ..., 1698), by William Sherlock (HTML at EEBO TCP)
A vindication of the doctrine of the holy and ever blessed Trinity and the Incarnation of the Son of God occasioned by the Brief notes on the Creed of St. Athanasius and the Brief history of the Unitarians or Socinians and containing an answer to both / by William Sherlock. (London : Printed for W. Rogers, 1691), by William Sherlock (HTML at EEBO TCP)
The Bishop of Worcester's answer to Mr. Locke's letter, concerning some passages relating to his Essay of humane understanding, mention'd in the late Discourse in vindication of the Trinity with a postscript in answer to some reflections made on that treatise in a late Socinian pamphlet. (London : Printed by J.H. for Henry Mortlock ..., 1697), by Edward Stillingfleet (HTML at EEBO TCP)
A letter to the reverend the clergy of both universities, concerning the Trinity and the Athanasian creed with reflections on all the late hypotheses, particularly Dr. W's, Dr. S--th's, the Trinity placed in its due light, The 28 propositions, The calm discourse of a Trinity in the Godhead, and the defence of Dr. Sherlock's notions : with a short discourse concerning mysteries. ([London : s.n.], 1694), by Matthew Tindal (HTML at EEBO TCP)
The reflections on the XXVIII propositions touching the doctrine of the Trinity, in a letter to the clergy, &c. maintain'd, against the Third defence of the said propositions by the same hand. ([London : s.n.], 1695), by Matthew Tindal (HTML at EEBO TCP)
An eighth letter concerning the Sacred Trinity occasioned by some letters to him on that subject / by John Wallis ... ([London : s.n., 1692]), by John Wallis (HTML at EEBO TCP)
An explication and vindication of the Athanasian Creed in a third letter, pursuant of two former, concerning the Sacred Trinity : together with a postscript, in answer to another letter / by John Wallis ... (London : Printed for Tho. Parkhurst ..., 1691), by John Wallis (HTML at EEBO TCP)
A fourth letter concerning the sacred Trinity in reply to what is entituled An answer to Dr. Wallis's three letters / by John Wallis ... (London : Printed for Tho. Parkhurst ..., 1691), by John Wallis (HTML at EEBO TCP)
A brief state of the Socinian controversy concerning a trinity in unity by Isaac Barrow ... (London : Printed for Brabazon Aylmer ..., 1698), by Isaac Barrow (HTML at EEBO TCP)
The divine trinunity of the Father, Son, and Holy Spirit, or, The blessed doctrine of the three coessentiall subsistents in the eternall Godhead without any confusion or division of the distinct subsistences or multiplication of the most single and entire Godhead acknowledged, beleeved, adored by Christians, in opposition to pagans, Jewes, Mahumetans, blasphemous and antichristian hereticks, who say they are Christians, but are not / declared and published for the edification and satisfaction of all such as worship the only true God, Father, Son, and Holy Spirit, all three as one and the self same God blessed for ever, by Francis Cheynell ... (London : Printed by T.R. and E.M. for Samuel Gellibrand ..., 1650), by Francis Cheynell (HTML at EEBO TCP)
Prometheus Christianus, or, A treatise shewing the folly and vanity of atheism: and containing the solution of the main arguments of the Socinians, the Arrians, the deists, and other unitarians ... : whereunto is annex'd the refutation of some dogmatical points of a modern author relating to the trinity / by John Sauvage ... (London : Printed, and are to be Sold by Rich. Baldwin ..., [1]695), by John Sauvage (HTML at EEBO TCP)
The judgment of the fathers concerning the doctrine of the Trinity opposed to Dr. G. Bull's Defence of the Nicene faith : Part I. The doctrine of the Catholick Church, during the first 150 years of Christianity, and the explication of the unity of God (in a Trinity of Divine Persons) by some of the following fathers, considered. (London : [s.n.], 1695), by Thomas Smalbroke and Stephen Nye (HTML at EEBO TCP)
Theios divine beames of glorious light.: Shining from the sacred scriptures, which expell the fogges of error, that engender darknesse, in doubting soules, by mistaken thoughts, touching the diety, faith, and Christain ordinances. With a cordial to heal the corasives which the ill potion prepared by Mr. John Fry, a late member of Parliament, hath ingendred. / Written by one, who desires more that God may be glorified, then to affix his name to gain the vaine applause of man. Licensed and entered in the Stationeers Hall book. (London : Printed by Robert Ibbitson, 1651), by John Fry (HTML at EEBO TCP)
Two letters concerning the Holy Trinity reconciling together in some measure the semi-Arian and the Trinitarian systems, concerning Christ's divinity, and inquiring, whether the term persons, speaking of God, shou'd be impos'd in acts of church-communion : to be offered to the consideration of the learned, in order to their giving their opinion and reasons concerning the things herein mentioned. ([London : s.n., 168-?]) (HTML at EEBO TCP)
A vindication of the antapologist,: against the defence of the Dean of St. Paul's Apology. (London : Printed for Richard Bentley in Russel-Street in Covent-Garden, 1695) (HTML at EEBO TCP)
Theological discourses, in two parts the first containing VIII letters and III sermons concerning the blessed Trinity : the second, discourses & sermons on several occasions / by John Wallis ... (London : Printed for Tho. Parkhurst ..., 1695), by John Wallis (HTML at EEBO TCP)
The mystery of the Christian faith and of the Blessed Trinity vindicated and the divinity of Christ proved in three sermons preach'd at Westminster-Abbey upon Trinity-Sunday, June the 7th, and September 21, 1696 / by the late Reverend William Payne ... ; in the press before his death, and by himself ordered to be published. (London : Printed for Richard Cumberland ..., 1697), by William Payne (HTML at EEBO TCP)
The apostolical and true opinion concerning the Holy Trinity, revived and asserted: partly by twelve arguments levied against the traditional and false opinion about the Godhead of the Holy Spirit. Partly by a confession of faith touching the Three Persons. Both which having been formerly set forth, were much altered and augmented, with explications of Scripture, and with reasons: and finally, with testimonies of the Fathers, and of others. All reprinted, anno 1653. By John Bidle, M.A. And now again with the life of the author prefixed, anno Dom. 1691. ([London : s.n., 1691]), by John Biddle and Saint Irenaeus (HTML at EEBO TCP)
Twelve arguments drawn out of the Scripture,: wherein the commonly received opinion touching the deity of the Holy Spirit, is clearly and fully refuted. To which is prefixed a letter tending to the same purpose, written to a Member of the Honourable House of Commons. And to which is subjoyned an exposition of five principall passages of the Scripture, alleadged by the adversaries to prove the deity of the Holy Spirit; together with an answer to their grand objection touching the supposed omnipresence of the Holy Spirit. / By Iohn Bidle, Master of Arts. ([London : s.n.], Printed in the yeare 1647), by John Biddle and I. H. (HTML at EEBO TCP)
Brief observations upon the vindication of the trinity and incarnation, by the learned Dr. W. Sherlock: ([London? : s.n., 1690]), by William Sherlock (HTML at EEBO TCP)
An Earnest call to those nonconformists, who really believe the doctrine of the holy, blessed and glorious trinity, to come into the communion of the Church of England that by their constant regular confession of the Christian faith, they may confound the devices of the gain-sayers, whom by their separation they have so much encouraged. (London : Printed and are to be sold by Randal Taylor ..., 1691) (HTML at EEBO TCP)
A brief but clear confutation of the doctrine of the trinity. ([London? : s.n., 1693]), by William Freke (HTML at EEBO TCP)
Tri-unity, or, The doctrin of the Holy Trinity asserted in a discourse on 2 Cor. XIII. XIV : by Isaac Mauduit ... (London : Printed by Hannah Clark for John Dunton ..., 1694), by Isaac Mauduit (HTML at EEBO TCP)
Ter tria: or the doctrine of the three sacred persons, father, son & spirit.: Principall graces, faith, hope, & love. Main duties, prayer, hearing, and meditation. Summarily digested for the pleasure and profit of the pious and ingenious reader. / By Faithfull Teate preacher of the Word at Sudbury in Suffolk. (London : Printed for George Sawbridg at the sign of the Bible on Ludgate Hill, 1658), by Faithful Teate (HTML at EEBO TCP)
Gods glory vindicated and blasphemy confuted:: being a brief and plain ansvver to that blasphemous book intituled, Twelve arguments against the deity of the Holy Ghost, written by Tho. Bidle Master of Arts, and now burnt by speciall command from the Parliament on Wednesday the 8 of this present September, by the common hangman. Wherein the arguments of the said book are set down together with proper answers thereto. And twelve anti-arguments proving the deity of the Holy Ghost. (London : Printed for William Ley, and are to be sold at his shop, at Pauls Chaine, 1647), by John Biddle (HTML at EEBO TCP)
Animadversions on a postscript to the defence of Dr. Sherlock, against the calm discourse of the sober enquirer as also on the letter to a friend concerning that postscript. ([London? : s.n., 1695?]) (HTML at EEBO TCP)
Reflections on a letter writ by a nameless author to the reverend clergy of both universities and on his bold reflections on the trinity &c. / by Richard Frankland. (London : Printed for A. & J. Churchill, and sold by F. Bently ..., 1697), by Richard Frankland (HTML at EEBO TCP)
A defence of the doctrines of the Holy Trinity and incarnation placed in their due light in answer to a letter, written to the clergy of both universities. ([London : s.n, 1694]), by Arthur Bury (HTML at EEBO TCP)
A glimpse of God, or, A treatise proving that there is a God discovering the grounds of atheism, with arguments of divers sorts against atheists : shewing also, the unity of the Godhead, and the trinity of the persons ... / by ... Mr. Thomas Byrdall ... (London : Printed by A. Maxwel for Thomas Parkhurst ..., 1665), by Thomas Byrdall (HTML at EEBO TCP)
The Socinian controversie touching the Son of God reduced, in a brief essay, to prove the Son one in essence with the Father, upon Socinian principles, concessions and reason : concluded with an humble and serious caution to the friends of the Church of England, against the approaches of Socinianism / by F.F. ... (London : Printed for A. and J. Churchil ..., 1693), by Francis Fullwood (HTML at EEBO TCP)
The third part of the new Athenians no noble Bereans: being an answer to the Athenian Mercury of the 14th. 4th. month, called June, in behalf of the people called Quakers. (London: : Printed for Thomas Northcott in George-yard in Lombard-street, 1692), by William Penn (HTML at EEBO TCP)
The doctrine of the glorious Trinity not explained, but asserted by several texts as they are expounded by the ancient fathers and later divines for the satisfaction of such as doubt, the conviction of such as deny, and the confirmation of such as believe this mysterious article of the Christian faith / by Francis Gregory. (London : Printed for Walter Kettilby ..., 1695), by Francis Gregory (HTML at EEBO TCP)
An appeal to the serious and candid professors of Christianity. On the following subjects. I. The use of reason in matters of religion. II. The power of man to do the will of God. III. Original sin. IV. Election and reprobation. V. The divinity of Christ, and VI. Atonement for sin by the death of Christ. / By Joseph Priestly [sic], L.L.D. F.R.S. and a lover of the Gospel. ; To which are added, a concise history of the rise of those doctrines: and The triumph of truth; being an account of the trial of Mr. E. Elwall, for heresy and blasphemy, at Stafford Assizes. ; [Two lines of Scripture texts] (Philadelphia: : Printed and sold by Robert Bell, in Third-Street., M,DCC,LXXXIV. [1784]), by Joseph Priestley (HTML at Evans TCP)
Twenty three sermons upon the chief end of man. The divine authority of the sacred Scriptures, the being and attributes of God, and the doctrine of the Trinity, preach'd at Philadelphia, Anno Dom. 1743. / By Gilbert Tennent, A.M. ; [Seven lines of Scripture texts] (Philadelphia: : Printed and sold by William Bradford, at the Sign of the Bible in Second Street., MDCCXLIV. [1744]), by Gilbert Tennent (HTML at Evans TCP)

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