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 2.—God the Only Unchangeable Essence.
3. He is, however, without doubt, a substance, or, if it be better so to call it, an essence, which the Greeks call οὐσία. For as wisdom is so called from the being wise, and knowledge from knowing; so from being559 John i. 1, 14 Esse 1 Cor. i. 24 comes that which we call essence. And who is there that is, more than He who said to His servant Moses, “I am that I am;” and, “Thus shall thou say unto the children of Israel, He who is hath sent me unto you?”560 [This singleness and doubleness is explained in chapter 3.—W.G.T.S.] Ex. iii. 14 But other things that are called essences or substances admit of accidents, whereby a change, whether great or small, is produced in them. But there can be no accident of this kind in respect to God; and therefore He who is God is the only unchangeable substance or essence, to whom certainly being itself, whence comes the name of essence, most especially and most truly belongs. For that which is changed does not retain its own being; and that which can be changed, although it be not actually changed, is able not to be that which it had been; and hence that which not only is not changed, but also cannot at all be changed, alone falls most truly, without difficulty or hesitation, under the category of being.
CAPUT II.
3. Deus sola incommutabilis essentia. Est tamen sine dubitatione substantia, vel, si melius hoc appellatur, essentia, quam Graeci οὐσίαν vocant. Sicut enim ab eo quod est sapere dicta est sapientia, et ab eo quod est scire dicta est scientia; ita ab eo quod est esse dicta est essentia. Et quis magis est, quam ille qui dixit famulo suo Moysi, Ego sum qui sum; et, Dices filiis Israel: Qui est, misit me ad vos (Exod. III, 14)? Sed aliae quae dicuntur essentiae sive substantiae, capiunt accidentia, quibus in eis fiat vel magna vel quantacumque mutatio: Deo autem aliquid ejusmodi accidere non potest; et ideo sola est incommutabilis substantia vel essentia, qui Deus est, cui profectio ipsum esse, unde essentia nominata est, maxime ac verissime competit. Quod enim mutatur, non servat ipsum esse; et quod mutari potest, etiamsi non mutetur, potest quod fuerat non esse: ac per hoc illud solum quod non tantum non mutatur, verum etiam mutari omnino non potest, sine scrupulo occurrit quod verissime dicatur esse.