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 5.—The Holy Spirit Also is Equal to the Father and the Son in All Things.
7. Wherefore also the Holy Spirit consists in the same unity of substance, and in the same equality. For whether He is the unity of both, or the holiness, or the love, or therefore the unity because the love, and therefore the love because the holiness, it is manifest that He is not one of the two, through whom the two are joined, through whom the Begotten is loved by the Begetter, and loves Him that begat Him, and through whom, not by participation, but by their own essence, neither by the gift of any superior, but by their own, they are “keeping the unity of the Spirit in the bond of peace;”604 Eph. iv. 3 which we are commanded to imitate by grace, both towards God and towards ourselves. “On which two commandments hang all the law and the prophets.”605 Matt. xxii. 37–40 So those three are God, one, alone, great, wise, holy, blessed. But we are blessed from Him, and through Him, and in Him; because we ourselves are one by His gift, and one spirit with Him, because our soul cleaves to Him so as to follow Him. And it is good for us to cleave to God, since He will destroy every man who is estranged from Him. Therefore the Holy Spirit, whatever it is, is something common both to the Father and Son. But that communion itself is consubstantial and co-eternal; and if it may fitly be called friendship, let it be so called; but it is more aptly called love. And this is also a substance, since God is a substance, and “God is love,” as it is written.606 1 John iv. 16 But as He is a substance together with the Father and the Son, so that substance is together with them great, and together with them good, and together with them holy, and whatsoever else is said in reference to substance; since it is not one thing to God to be, and another to be great or to be good, and the rest, as we have shown above. For if love is less great therein [i.e. in God] than wisdom, then wisdom is loved in less degree than according to what it is; love is therefore equal, in order that wisdom may be loved according to its being; but wisdom is equal with the Father, as we have proved above; therefore also the Holy Spirit is equal; and if equal, equal in all things, on account of the absolute simplicity which is in that substance. And therefore they are not more than three: One who loves Him who is from Himself, and One who loves Him from whom He is, and Love itself. And if this last is nothing, how is “God love”? If it is not substance, how is God substance?
CAPUT V.
7. Spiritus sanctus etiam Patri et Filio aequalis in omnibus. Quapropter etiam Spiritus sanctus in eadem unitate substantiae et aequalitate 0928 consistit. Sive enim sit unitas amborum, sive sanctitas, sive charitas, sive ideo unitas quia charitas, et ideo charitas quia sanctitas, manifestum est quod non aliquis duorum est quo uterque conjungitur, quo genitus a gignente diligatur, generatoremque suum diligat, sintque non participatione, sed essentia sua, neque dono superioris alicujus, sed suo proprio servantes unitatem spiritus in vinculo pacis (Ephes. IV, 3). Quod imitari per gratiam, et ad Deum, et ad nos ipsos jubemur. In quibus duobus praeceptis tota Lex pendet et Prophetae (Matth. XXII, 37-40). Ita sunt illa tria, Deus unus, solus, magnus, sapiens, sanctus, beatus. Nos autem ex ipso, et per ipsum, et in ipso beati; quia ipsius munere inter nos unum, cum illo autem unus spiritus, quia agglutinatur anima nostra post eum. Et nobis haerere Deo bonum est, quia perdet omnem qui fornicatur ab eo (Psal. LXXVII, 28, 27). Spiritus ergo sanctus commune aliquid est Patris et Filii, quidquid illud est. At ipsa communio, consubstantialis et coaeterna: quae si amicitia convenienter dici potest, dicatur; sed aptius dicitur charitas. Et haec quoque substantia, quia Deus substantia, et Deus charitas, sicut scriptum est (I Joan. IV, 16). Sicut autem substantia simul cum Patre et Filio, ita simul magna, et simul bona, et simul sancta, et quidquid aliud ad se dicitur: quoniam non aliud est Deo esse, et aliud magnum esse vel bonum esse, et caetera, sicut supra ostendimus. Si enim minus magna est ibi charitas quam sapientia, minus quam est diligitur sapientia: aequalis est igitur, ut quanta est sapientia tantum diligatur: est autem sapientia aequalis Patri, sicut supra disputavimus: aequalis est igitur etiam Spiritus sanctus; et si aequalis, in omnibus aequalis propter summam simplicitatem quae in illa substantia est. Et ideo non amplius quam tria sunt; unus diligens eum qui de illo est, et unus diligens eum de quo est, et ipsa dilectio. Quae si nihil est, quomodo Deus dilectio est? Si non est substantia, quomodo Deus substantia est?