Fifteen Books of Aurelius Augustinus,
Chapter 2.—In What Manner This Work Proposes to Discourse Concerning the Trinity.
Chapter 4.—What the Doctrine of the Catholic Faith is Concerning the Trinity.
Chapter 7.—In What Manner the Son is Less Than the Father, and Than Himself.
Chapter 9.—All are Sometimes Understood in One Person.
Chapter 11.—By What Rule in the Scriptures It is Understood that the Son is Now Equal and Now Less.
Chapter 4.—The Glorification of the Son by the Father Does Not Prove Inequality.
Chapter 6.—The Creature is Not So Taken by the Holy Spirit as Flesh is by the Word.
Chapter 7.—A Doubt Raised About Divine Appearances.
Chapter 8.—The Entire Trinity Invisible.
Chapter 11.—Of the Same Appearance.
Chapter 12.—The Appearance to Lot is Examined.
Chapter 13.—The Appearance in the Bush.
Chapter 14.—Of the Appearance in the Pillar of Cloud and of Fire.
Chapter 16.—In What Manner Moses Saw God.
Chapter 18.—The Vision of Daniel.
Chapter 1.—What is to Be Said Thereupon.
Chapter 2.—The Will of God is the Higher Cause of All Corporeal Change. This is Shown by an Example.
Chapter 3.—Of the Same Argument.
Chapter 5.—Why Miracles are Not Usual Works.
Chapter 6.—Diversity Alone Makes a Miracle.
Chapter 7.—Great Miracles Wrought by Magic Arts.
Chapter 8.—God Alone Creates Those Things Which are Changed by Magic Art.
Chapter 9.—The Original Cause of All Things is from God.
Chapter 10.—In How Many Ways the Creature is to Be Taken by Way of Sign. The Eucharist.
Preface.—The Knowledge of God is to Be Sought from God.
Chapter 2.—How We are Rendered Apt for the Perception of Truth Through the Incarnate Word.
Chapter 7.—In What Manner We are Gathered from Many into One Through One Mediator.
Chapter 8.—In What Manner Christ Wills that All Shall Be One in Himself.
Chapter 9.—The Same Argument Continued.
Chapter 10.—As Christ is the Mediator of Life, So the Devil is the Mediator of Death.
Chapter 11.—Miracles Which are Done by Demons are to Be Spurned.
Chapter 12.—The Devil the Mediator of Death, Christ of Life.
Chapter 2.—God the Only Unchangeable Essence.
Chapter 4.—The Accidental Always Implies Some Change in the Thing.
Chapter 7.—The Addition of a Negative Does Not Change the Predicament.
Chapter 9.—The Three Persons Not Properly So Called [in a Human Sense].
Chapter 11.—What is Said Relatively in the Trinity.
Chapter 12.—In Relative Things that are Reciprocal, Names are Sometimes Wanting.
Chapter 13.—How the Word Beginning (Principium) is Spoken Relatively in the Trinity.
Chapter 14.—The Father and the Son the Only Beginning (Principium) of the Holy Spirit.
Chapter 15.—Whether the Holy Spirit Was a Gift Before as Well as After He Was Given.
Chapter 16.—What is Said of God in Time, is Said Relatively, Not Accidentally.
Chapter 2 .—What is Said of the Father and Son Together, and What Not.
Chapter 4.—The Same Argument Continued.
Chapter 5.—The Holy Spirit Also is Equal to the Father and the Son in All Things.
Chapter 6.—How God is a Substance Both Simple and Manifold.
Chapter 7.—God is a Trinity, But Not Triple (Triplex).
Chapter 8.—No Addition Can Be Made to the Nature of God.
Chapter 9.—Whether One or the Three Persons Together are Called the Only God.
Chapter 5.—In God, Substance is Spoken Improperly, Essence Properly.
Chapter 1.—It is Shown by Reason that in God Three are Not Anything Greater Than One Person.
Chapter 4.—God Must First Be Known by an Unerring Faith, that He May Be Loved.
Chapter 5.—How the Trinity May Be Loved Though Unknown.
Chapter 6.—How the Man Not Yet Righteous Can Know the Righteous Man Whom He Loves.
Chapter 10.—There are Three Things in Love, as It Were a Trace of the Trinity.
Chapter 1.—In What Way We Must Inquire Concerning the Trinity.
Chapter 5.—That These Three are Several in Themselves, and Mutually All in All.
Chapter 8.—In What Desire and Love Differ.
Chapter 10.—Whether Only Knowledge that is Loved is the Word of the Mind.
Chapter 2.—No One at All Loves Things Unknown.
Chapter 3.—That When the Mind Loves Itself, It is Not Unknown to Itself.
Chapter 4.—How the Mind Knows Itself, Not in Part, But as a Whole.
Chapter 6.—The Opinion Which the Mind Has of Itself is Deceitful.
Chapter 8.—How the Soul Inquires into Itself. Whence Comes the Error of the Soul Concerning Itself.
Chapter 9.—The Mind Knows Itself, by the Very Act of Understanding the Precept to Know Itself.
Chapter 12.—The Mind is an Image of the Trinity in Its Own Memory, and Understanding, and Will.
Chapter 1.—A Trace of the Trinity Also In the Outer Man.
Chapter 4.—How This Unity Comes to Pass.
Chapter 6.—Of What Kind We are to Reckon the Rest (Requies), and End (Finis), of the Will in Vision.
Chapter 7.—There is Another Trinity in the Memory of Him Who Thinks Over Again What He Has Seen.
Chapter 8.—Different Modes of Conceiving.
Chapter 9.—Species is Produced by Species in Succession.
Chapter 11.—Number, Weight, Measure.
Chapter 1.—Of What Kind are the Outer and the Inner Man.
Chapter 6. —Why This Opinion is to Be Rejected.
Chapter 8.—Turning Aside from the Image of God.
Chapter 9.—The Same Argument is Continued.
Chapter 10.—The Lowest Degradation Reached by Degrees.
Chapter 11.—The Image of the Beast in Man.
Chapter 12.—There is a Kind of Hidden Wedlock in the Inner Man. Unlawful Pleasures of the Thoughts.
Chapter 3.—Some Desires Being the Same in All, are Known to Each. The Poet Ennius.
Chapter 8.—Blessedness Cannot Exist Without Immortality.
Chapter 11.—A Difficulty, How We are Justified in the Blood of the Son of God.
Chapter 12.—All, on Account of the Sin of Adam, Were Delivered into the Power of the Devil.
Chapter 13.—Man Was to Be Rescued from the Power of the Devil, Not by Power, But by Righteousness.
Chapter 14.—The Unobligated Death of Christ Has Freed Those Who Were Liable to Death.
Chapter 15.—Of the Same Subject.
Chapter 17.—Other Advantages of the Incarnation.
Chapter 18.—Why the Son of God Took Man Upon Himself from the Race of Adam, and from a Virgin.
Chapter 19.—What in the Incarnate Word Belongs to Knowledge, What to Wisdom.
Chapter 3.—A Difficulty Removed, Which Lies in the Way of What Has Just Been Said.
Chapter 5.—Whether the Mind of Infants Knows Itself.
Chapter 9.—Whether Justice and the Other Virtues Cease to Exist in the Future Life.
Chapter 10.—How a Trinity is Produced by the Mind Remembering, Understanding, and Loving Itself.
Chapter 11.—Whether Memory is Also of Things Present.
Chapter 13.—How Any One Can Forget and Remember God.
Chapter 16.—How the Image of God is Formed Anew in Man.
Chapter 1.—God is Above the Mind.
Chapter 3.—A Brief Recapitulation of All the Previous Books.
Chapter 4.—What Universal Nature Teaches Us Concerning God.
Chapter 5.—How Difficult It is to Demonstrate the Trinity by Natural Reason.
Chapter 8.—How the Apostle Says that God is Now Seen by Us Through a Glass.
Chapter 9.—Of the Term “Enigma,” And of Tropical Modes of Speech.
Chapter 12.—The Academic Philosophy.
Chapter 14.—The Word of God is in All Things Equal to the Father, from Whom It is.
Chapter 16.—Our Word is Never to Be Equalled to the Divine Word, Not Even When We Shall Be Like God.
Chapter 18.—No Gift of God is More Excellent Than Love.
Chapter 24.—The Infirmity of the Human Mind.
Chapter 28.—The Conclusion of the Book with a Prayer, and an Apology for Multitude of Words.
Chapter 9.—Whether One or the Three Persons Together are Called the Only God.
10. And since we are showing how we can say the Father alone, because there is no Father in the Godhead except Himself, we must consider also the opinion which holds that the only true God is not the Father alone, but the Father and the Son and the Holy Spirit. For if any one should ask whether the Father alone is God, how can it be replied that He is not, unless perhaps we were to say that the Father indeed is God, but that He is not God alone, but that the Father, Son, and Holy Spirit are God alone? But then what shall we do with that testimony of the Lord? For He was speaking to the Father, and had named the Father as Him to whom He was speaking, when He says, “And this is life eternal, that they may know Thee the one true God.”611 John xvii. 3 And this the Arians indeed usually take, as if the Son were not true God. Passing them by, however, we must see whether, when it is said to the Father, “That they may know Thee the one true God,” we are forced to understand it as if He wished to intimate that the Father alone is the true God; lest we should not understand any to be God, except the three together, the Father, Son, and Holy Spirit. Are we therefore, from the testimony of the Lord, both to call the Father the one true God, and the Son the one true God, and the Holy Spirit the one true God, and the Father, the Son, and the Holy Spirit together, that is, the Trinity itself together, not three true Gods but one true God? Or because He added, “And Jesus Christ whom Thou hast sent,” are we to supply “the one true God;” so that the order of the words is this, “That they may know Thee, and Jesus Christ whom Thou hast sent, the one true God?” Why then did He omit to mention the Holy Spirit? Is it because it follows, that whenever we name One who cleaves to One by a harmony so great that through this harmony both are one, this harmony itself must be understood, although it is not mentioned? For in that place, too, the apostle seems as it were to pass over the Holy Spirit; and yet there, too, He is understood, where he says, “All are yours, and ye are Christ’s, and Christ is God’s.”612 1 Cor. iii. 22, 23 And again, “The head of the woman is the man, the head of the man is Christ, and the head of Christ is God.”613 1 Cor. xi. 3 But again, if God is only all three together, how can God be the head of Christ, that is, the Trinity the head of Christ, since Christ is in the Trinity in order that it may be the Trinity? Is that which is the Father with the Son, the head of that which is the Son alone? For the Father with the Son is God, but the Son alone is Christ: especially since it is the Word already made flesh that speaks; and according to this His humiliation also, the Father is greater than He, as He says, “for my Father is greater than I;”614 John xiv. 28 so that the very being of God, which is one to Him with the Father, is itself the head of the man who is mediator, which He is alone.615 1 Tim. ii. 5 For if we rightly call the mind the chief thing of man, that is, as it were the head of the human substance, although the man himself together with the mind is man; why is not the Word with the Father, which together is God, much more suitably and much more the head of Christ, although Christ as man cannot be understood except with the Word which was made flesh? But this, as we have already said, we shall consider somewhat more carefully hereafter. At present the equality and one and the same substance of the Trinity has been demonstrated as briefly as possible, that in whatever way that other question be determined, the more rigorous discussion of which we have deferred, nothing may hinder us from confessing the absolute equality of the Father, Son, and Holy Spirit.
CAPUT IX.
10. An una vel tres simul personae dicantur solus Deus. Et quoniam ostendimus quomodo possit dici solus Pater, quia non nisi ipse ibi Pater; consideranda est illa sententia qua dicitur, Deum verum solum non esse Patrem solum, sed Patrem et Filium et Spiritum sanctum. Si quis enim interroget, Pater solus utrum sit Deus: quomodo respondebitur non esse, nisi forte ita dicamus, esse quidem Patrem Deum, sed non eum esse solum Deum; esse autem solum Deum, Patrem et Filium et Spiritum sanctum? Sed quid agimus de illo testimonio Domini? Patri enim dicebat, et Patrem nominaverat ad quem loquebatur, cum ait: Haec est autem vita aeterna, ut cognoscant te unum verum Deum (Joan. XVII, 3). Quod quidem Ariani sic solent accipere, quasi non sit Filius verus Deus. Quibus exclusis videndum est an intelligere cogamur, cum dictum est Patri, Ut cognoscant te unumverum Deum; tanquam hoc insinuare voluerit, quia et solus Pater Deus verus est, ne non intelligeremus Deum, nisi ipsa tria simul, Patrem et Filium et Spiritum sanctum. Num ergo ex Domini testimonio, et Patrem unum verum Deum dicimus, et Filium unum verum Deum, et Spiritum sanctum unum verum Deum, et simul Patrem et Filium et Spiritum sanctum, id est, simul ipsam Trinitatem, non tres veros deos, sed unum verum Deum? An quoniam addidit, Et quem misisti Jesum Christum; subaudiendum est, unum verum Deum; et ordo verborum est, Ut te et quem misisti Jesum Christum, cognoscant unum verum Deum? Cur ergo tacuit de Spiritu sancto? An quoniam consequens est ut ubicumque nominatur unum tanta pace uni adhaerens, ut per hanc utrumque unum sit, jam ex hoc intelligatur etiam ipsa pax, quamvis non commemoretur? Nam et illo loco Apostolus videtur quasi praetermittere Spiritum sanctum, et tamen etiam ibi intelligitur, ubi ait, Omnia sunt vestra; vos autem, Christi; Christus autem, Dei (I Cor. III, 22, 23): et iterum, Caput mulieris, vir; caput viri, Christus; caput autem Christi, Deus (Id. XI, 3). Sed rursus si Deus non nisi omnia simul tria, quomodo caput Christi Deus, id est, caput Christi Trinitas, cum in Trinitate sit Christus ut sit Trinitas? An quod est Pater cum Filio, caput est ei quod est solus Filius? Cum Filio enim Pater Deus, solus autem Filius Christus est: maxime quia jam Verbum caro factum loquitur, secundum quam humilitatem ejus etiam major est Pater, sicut dicit, Quoniam Pater major me est (Joan. XIV, 28); ut hoc ipsum Deum esse, quod illi cum Patre unum est, caput sit hominis Mediatoris, quod ipse solus est (I Tim. II, 5). Si enim mentem 0931 recte dicimus principale hominis, id est, tanquam caput humanae substantiae, cum ipse homo cum mente sit homo; cur non multo congruentius, multoque magis Verbum cum Patre quod simul Deus est, caput est Christi, quamvis Christus homo nisi cum Verbo quod caro factum est, intelligi non possit? Sed hoc, ut jam diximus, aliquanto diligentius postea considerabimus. Nunc autem aequalitas Trinitatis et una eademque substantia, quantum breviter potuimus, demonstrata est, ut quoquo modo se habet ista quaestio, quam discutiendam acriore intentione distulimus, nihil impediat quominus fateamur summam aequalitatem Patris et Filii et Spiritus sancti.