On the Holy Trinity — Augustine of Hippo

Book I

In which the unity and equality of the supreme Trinity is established from the sacred Scriptures, and some texts alleged against the equality of the Son are explained.

Chapter 1.--This Work is Written Against Those Who Sophistically Assail the Faith of the Trinity, Through Misuse of Reason. They Who Dispute Concerning God Err from a Threefold Cause. Holy Scripture, Removing What is False, Leads Us on by Degrees to Things Divine. What True Immortality is. We are Nourished by Faith, that We May Be Enabled to Apprehend Things Divine.

1. The following dissertation concerning the Trinity, as the reader ought to be informed, has been written in order to guard against the sophistries of those who disdain to begin with faith, and are deceived by a crude and perverse love of reason. Now one class of such men endeavor to transfer to things incorporeal and spiritual the ideas they have formed, whether through experience of the bodily senses, or by natural human wit and diligent quickness, or by the aid of art, from things corporeal; so as to seek to measure and conceive of the former by the latter. Others, again, frame whatever sentiments they may have concerning God according to the nature or affections of the human mind; and through this error they govern their discourse, in disputing concerning God, by distorted and fallacious rules. While yet a third class strive indeed to transcend the whole creation, which doubtless is changeable, in order to raise their thought to the unchangeable substance, which is God; but being weighed down by the burden of mortality, whilst they both would seem to know what they do not, and cannot know what they would, preclude themselves from entering the very path of understanding, by an over-bold affirmation of their own presumptuous judgments; choosing rather not to correct their own opinion when it is perverse, than to change that which they have once defended. And, indeed, this is the common disease of all the three classes which I have mentioned,--viz., both of those who frame their thoughts of God according to things corporeal, and of those who do so according to the spiritual creature, such as is the soul; and of those who neither regard the body nor the spiritual creature, and yet think falsely about God; and are indeed so much the further from the truth, that nothing can be found answering to their conceptions, either in the body, or in the made or created spirit, or in the Creator Himself. For he who thinks, for instance, that God is white or red, is in error; and yet these things are found in the body. Again, he who thinks of God as now forgetting and now remembering, or anything of the same kind, is none the less in error; and yet these things are found in the mind. But he who thinks that God is of such power as to have generated Himself, is so much the more in error, because not only does God not so exist, but neither does the spiritual nor the bodily creature; for there is nothing whatever that generates its own existence.

2. In order, therefore, that the human mind might be purged from falsities of this kind, Holy Scripture, which suits itself to babes has not avoided words drawn from any class of things really existing, through which, as by nourishment, our understanding might rise gradually to things divine and transcendent. For, in speaking of God, it has both used words taken from things corporeal, as when it says, "Hide me under the shadow of Thy wings;" and it has borrowed many things from the spiritual creature, whereby to signify that which indeed is not so, but must needs so be said: as, for instance, "I the Lord thy God am a jealous God;" and, "It repenteth me that I have made man." But it has drawn no words whatever, whereby to frame either figures of speech or enigmatic sayings, from things which do not exist at all. And hence it is that they who are shut out from the truth by that third kind of error are more mischievously and emptily vain than their fellows; in that they surmise respecting God, what can neither be found in Himself nor in any creature. For divine Scripture is wont to frame, as it were, allurements for children from the things which are found in the creature; whereby, according to their measure, and as it were by steps, the affections of the weak may be moved to seek those things that are above, and to leave those things that are below. But the same Scripture rarely employs those things which are spoken properly of God, and are not found in any creature; as, for instance, that which was said to Moses, "I am that I am;" and, "I Am hath sent me to you." For since both body and soul also are said in some sense to be, Holy Scripture certainly would not so express itself unless it meant to be understood in some special sense of the term. So, too, that which the Apostle says, "Who only hath immortality." Since the soul also both is said to be, and is, in a certain manner immortal, Scripture would not say "only hath," unless because true immortality is unchangeableness; which no creature can possess, since it belongs to the creator alone. So also James says, "Every good gift and every perfect gift is from above, and cometh down from the Father of Lights, with whom is no variableness, neither shadow of turning." So also David, "Thou shall change them, and they shall be changed; but Thou art the same."

3. Further, it is difficult to contemplate and fully know the substance of God; who fashions things changeable, yet without any change in Himself, and creates things temporal, yet without any temporal movement in Himself. And it is necessary, therefore, to purge our minds, in order to be able to see ineffably that which is ineffable; whereto not having yet attained, we are to be nourished by faith, and led by such ways as are more suited to our capacity, that we may be rendered apt and able to comprehend it. And hence the Apostle says, that "in Christ indeed are hid all the treasures of wisdom and knowledge;" and yet has commended Him to us, as to babes in Christ, who, although already born again by His grace, yet are still carnal and psychical, not by that divine virtue wherein He is equal to the Father, but by that human infirmity whereby He was crucified. For he says, "I determined not to know anything among you, save Jesus Christ and Him crucified;" and then he continues, "And I was with you in weakness, and in fear, and in much trembling." And a little after he says to them, "And I, brethren, could not speak unto you as unto spiritual, but as unto carnal, even as unto babes in Christ. I have fed you with milk, and not with meat: for hitherto ye were not able to bear it, neither yet now are ye able." There are some who are angry at language of this kind, and think it is used in slight to themselves, and for the most part prefer rather to believe that they who so speak to them have nothing to say, than that they themselves cannot understand what they have said. And sometimes, indeed, we do allege to them, not certainly that account of the case which they seek in their inquiries about God,--because neither can they themselves receive it, nor can we perhaps either apprehend or express it,--but such an account of it as to demonstrate to them how incapable and utterly unfit they are to understand that which they require of us. But they, on their parts, because they do not hear what they desire, think that we are either playing them false in order to conceal our own ignorance, or speaking in malice because we grudge them knowledge; and so go away indignant and perturbed.

Chapter 2.--In What Manner This Work Proposes to Discourse Concerning the Trinity.

4. Wherefore, our Lord God helping, we will undertake to render, as far as we are able, that very account which they so importunately demand: viz., that the Trinity is the one and only and true God, and also how the Father, the Son, and the Holy Spirit are rightly said, believed, understood, to be of one and the same substance or essence; in such wise that they may not fancy themselves mocked by excuses on our part, but may find by actual trial, both that the highest good is that which is discerned by the most purified minds, and that for this reason it cannot be discerned or understood by themselves, because the eye of the human mind, being weak, is dazzled in that so transcendent light, unless it be invigorated by the nourishment of the righteousness of faith. First, however, we must demonstrate, according to the authority of the Holy Scriptures, whether the faith be so. Then, if God be willing and aid us, we may perhaps at least so far serve these talkative arguers--more puffed up than capable, and therefore laboring under the more dangerous disease--as to enable them to find something which they are not able to doubt, that so, in that case where they cannot find the like, they may be led to lay the fault to their own minds, rather than to the truth itself or to our reasonings; and thus, if there be anything in them of either love or fear towards God, they may return and begin from faith in due order: perceiving at length how healthful a medicine has been provided for the faithful in the holy Church, whereby a heedful piety, healing the feebleness of the mind, may render it able to perceive the unchangeable truth, and hinder it from falling headlong, through disorderly rashness, into pestilent and false opinion. Neither will I myself shrink from inquiry, if I am anywhere in doubt; nor be ashamed to learn, if I am anywhere in error.

Chapter 3.--What Augustin Requests from His Readers. The Errors of Readers Dull of Comprehension Not to Be Ascribed to the Author.

Book II

Augustin pursues his defense of the equality of the Trinity; and in treating of the sending of the Son and of the Holy Spirit, and of the various appearances of God, demonstrates that He who is sent is not therefore less than He who sends, because the one has sent, the other has been sent; but that the Trinity, being in all things equal, and alike in its own nature unchangeable and invisible and omnipresent, works indivisibly in each sending or appearance.

Preface.

When men seek to know God, and bend their minds according to the capacity of human weakness to the understanding of the Trinity; learning, as they must, by experience, the wearisome difficulties of the task, whether from the sight itself of the mind striving to gaze upon light unapproachable, or, indeed, from the manifold and various modes of speech employed in the sacred writings (wherein, as it seems to me, the mind is nothing else but roughly exercised, in order that it may find sweetness when glorified by the grace of Christ);--such men, I say, when they have dispelled every ambiguity, and arrived at something certain, ought of all others most easily to make allowance for those who err in the investigation of so deep a secret. But there are two things most hard to bear with, in the case of those who are in error: hasty assumption before the truth is made plain; and, when it has been made plain, defence of the falsehood thus hastily assumed. From which two faults, inimical as they are to the finding out of the truth, and to the handling of the divine and sacred books, should God, as I pray and hope, defend and protect me with the shield of His good will, and with the grace of His mercy, I will not be slow to search out the substance of God, whether through His Scripture or through the creature. For both of these are set forth for our contemplation to this end, that He may Himself be sought, and Himself be loved, who inspired the one, and created the other. Nor shall I be afraid of giving my opinion, in which I shall more desire to be examined by the upright, than fear to be carped at by the perverse. For charity, most excellent and unassuming, gratefully accepts the dovelike eye; but for the dog's tooth nothing remains, save either to shun it by the most cautious humility, or to blunt it by the most solid truth; and far rather would I be censured by any one whatsoever, than be praised by either the erring or the flatterer. For the lover of truth need fear no one's censure. For he that censures, must needs be either enemy or friend. And if an enemy reviles, he must be borne with: but a friend, if he errs, must be taught; if he teaches, listened to. But if one who errs praises you, he confirms your error; if one who flatters, he seduces you into error. "Let the righteous," therefore, "smite me, it shall be a kindness; and let him reprove me; but the oil of the sinner shall not anoint my head."

Chapter 1.--There is a Double Rule for Understanding the Scriptural Modes of Speech Concerning the Son of God. These Modes of Speech are of a Threefold Kind.

2. Wherefore, although we hold most firmly, concerning our Lord Jesus Christ, what may be called the canonical rule, as it is both disseminated through the Scriptures, and has been demonstrated by learned and Catholic handlers of the same Scriptures, namely, that the Son of God is both understood to be equal to the Father according to the form of God in which He is, and less than the Father according to the form of a servant which He took; in which form He was found to be not only less than the Father, but also less than the Holy Spirit; and not only so, but less even than Himself,--not than Himself who was, but than Himself who is; because, by taking the form of a servant, He did not lose the form of God, as the testimonies of the Scriptures taught us, to which we have referred in the former book: yet there are some things in the sacred text so put as to leave it ambiguous to which rule they are rather to be referred; whether to that by which we understand the Son as less, in that He has taken upon Him the creature, or to that by which we understand that the Son is not indeed less than, but equal to the Father, but yet that He is from Him, God of God, Light of light. For we call the Son God of God; but the Father, God only; not of God. Whence it is plain that the Son has another of whom He is, and to whom He is Son; but that the Father has not a Son of whom He is, but only to whom He is father. For every son is what he is, of his father, and is son to his father; but no father is what he is, of his son, but is father to his son.

3. Some things, then, are so put in the Scriptures concerning the Father and the Son, as to intimate the unity and equality of their substance; as, for instance, "I and the Father are one;" and, "Who, being in the form of God, thought it not robbery to be equal with God;" and whatever other texts there are of the kind. And some, again, are so put that they show the Son as less on account of the form of a servant, that is, of His having taken upon Him the creature of a changeable and human substance; as, for instance, that which says, "For my Father is greater than I;" and, "The Father judgeth no man, but hath committed all judgment unto the Son." For a little after he goes on to say, "And hath given Him authority to execute judgment also, because He is the Son of man." And further, some are so put, as to show Him at that time neither as less nor as equal, but only to intimate that He is of the Father; as, for instance, that which says, "For as the Father hath life in Himself, so hath He given to the Son to have life in Himself;" and that other: "The Son can do nothing of Himself, but what He seeth the Father do." For if we shall take this to be therefore so said, because the Son is less in the form taken from the creature, it will follow that the Father must have walked on the water, or opened the eyes with clay and spittle of some other one born blind, and have done the other things which the Son appearing in the flesh did among men, before the Son did them; in order that He might be able to do those things, who said that the Son was not able to do anything of Himself, except what He hath seen the Father do. Yet who, even though he were mad, would think this? It remains, therefore, that these texts are so expressed, because the life of the Son is unchangeable as that of the Father is, and yet He is of the Father; and the working of the Father and of the Son is indivisible, and yet so to work is given to the Son from Him of whom He Himself is, that is, from the Father; and the Son so sees the Father, as that He is the Son in the very seeing Him. For to be of the Father, that is, to be born of the Father, is to Him nothing else than to see the Father; and to see Him working, is nothing else than to work with Him: but therefore not from Himself, because He is not from Himself. And, therefore, those things which "He sees the Father do, these also doeth the Son likewise," because He is of the Father. For He neither does other things in like manner, as a painter paints other pictures, in the same way as he sees others to have been painted by another man; nor the same things in a different manner, as the body expresses the same letters, which the mind has thought; but "whatsoever things," saith He, "the Father doeth, these same things also doeth the Son likewise." He has said both "these same things," and "likewise;" and hence the working of both the Father and the Son is indivisible and equal, but it is from the Father to the Son. Therefore the Son cannot do anything of Himself, except what He seeth the Father do. From this rule, then, whereby the Scriptures so speak as to mean, not to set forth one as less than another, but only to show which is of which, some have drawn this meaning, as if the Son were said to be less. And some among ourselves who are more unlearned and least instructed in these things, endeavoring to take these texts according to the form of a servant, and so misinterpreting them, are troubled. And to prevent this, the rule in question is to be observed whereby the Son is not less, but it is simply intimated that He is of the Father, in which words not His inequality but His birth is declared.

Chapter 2.--That Some Ways of Speaking Concerning the Son are to Be Understood According to Either Rule.

4. There are, then, some things in the sacred books, as I began by saying, so put, that it is doubtful to which they are to be referred: whether to that rule whereby the Son is less on account of His having taken the creature; or whether to that whereby it is intimated that although equal, yet He is of the Father. And in my opinion, if this is in such way doubtful, that which it really is can neither be explained nor discerned, then such passages may without danger be understood according to either rule, as that, for instance, "My doctrine is not mine, but His that sent me." For this may both be taken according to the form of a servant, as we have already treated it in the former book; or according to the form of God, in which He is in such way equal to the Father, that He is yet of the Father. For according to the form of God, as the Son is not one and His life another, but the life itself is the Son; so the Son is not one and His doctrine another, but the doctrine itself is the Son. And hence, as the text, "He hath given life to the Son," is no otherwise to be understood than, He hath begotten the Son, who is life; so also when it is said, He hath given doctrine to the Son, it may be rightly understood to mean, He hath begotten the Son, who is doctrine so that, when it is said, "My doctrine is not mine, but His who sent me," it is so to be understood as if it were, I am not from myself, but from Him who sent me.

Book III

The question is discussed with respect to the appearances of God spoken of in the previous book, which were made under bodily forms, whether only a creature was formed, for the purpose of manifesting God to human sight in such way as He at each time judged fitting; or whether angels, already existing, were so sent as to speak in the person of God; and this, either by assuming a bodily appearance from the bodily creature, or by changing their own bodies into whatever forms they would, suitable to the particular action, according to the power given to them by the Creator; while the essence itself of God was never seen in itself.

Preface.--Why Augustin Writes of the Trinity. What He Claims from Readers. What Has Been Said in the Previous Book.

1. I Would have them believe, who are willing to do so, that I had rather bestow labor in reading, than in dictating what others may read. But let those who will not believe this, but are both able and willing to make the trial, grant me whatever answers may be gathered from reading, either to my own inquiries, or to those interrogations of others, which for the character I bear in the service of Christ, and for the zeal with which I burn that our faith may be fortified against the error of carnal and natural men, I must needs bear with; and then let them see how easily I would refrain from this labor, and with how much even of joy I would give my pen a holiday. But if what we have read upon these subjects is either not sufficiently set forth, or is not to be found at all, or at any rate cannot easily be found by us, in the Latin tongue, while we are not so familiar with the Greek tongue as to be found in any way competent to read and understand therein the books that treat of such topics, in which class of writings, to judge by the little which has been translated for us, I do not doubt that everything is contained that we can profitably seek; while yet I cannot resist my brethren when they exact of me, by that law by which I am made their servant, that I should minister above all to their praiseworthy studies in Christ by my tongue and by my pen, of which two yoked together in me, Love is the charioteer; and while I myself confess that I have by writing learned many things which I did not know: if this be so, then this my labor ought not to seem superfluous to any idle, or to any very learned reader; while it is needful in no small part, to many who are busy, and to many who are unlearned, and among these last to myself. Supported, then, very greatly, and aided by the writings we have already read of others on this subject, I have undertaken to inquire into and to discuss, whatever it seems to my judgment can be reverently inquired into and discussed, concerning the Trinity, the one supreme and supremely good God; He himself exhorting me to the inquiry, and helping me in the discussion of it; in order that, if there are no other writings of the kind, there may be something for those to have and read who are willing and capable; but if any exist already, then it may be so much the easier to find some such writings, the more there are of the kind in existence.

2. Assuredly, as in all my writings I desire not only a pious reader, but also a free corrector, so I especially desire this in the present inquiry, which is so important that I would there were as many inquirers as there are objectors. But as I do not wish my reader to be bound down to me, so I do not wish my corrector to be bound down to himself. Let not the former love me more than the catholic faith, let not the latter love himself more than the catholic verity. As I say to the former, Do not be willing to yield to my writings as to the canonical Scriptures; but in these, when thou hast discovered even what thou didst not previously believe, believe it unhesitatingly; while in those, unless thou hast understood with certainty what thou didst not before hold as certain, be unwilling to hold it fast: so I say to the latter, Do not be willing to amend my writings by thine own opinion or disputation, but from the divine text, or by unanswerable reason. If thou apprehendest anything of truth in them, its being there does not make it mine, but by understanding and loving it, let it be both thine and mine; but if thou convictest anything of falsehood, though it have once been mine, in that I was guilty of the error, yet now by avoiding it let it be neither thine nor mine.

3. Let this third book, then, take its beginning at the point to which the second had reached. For after we had arrived at this, that we desired to show that the Son was not therefore less than the Father, because the Father sent and the Son was sent; nor the Holy Spirit therefore less than both, because we read in the Gospel that He was sent both by the one and by the other; we undertook then to inquire, since the Son was sent thither, where He already was, for He came into the world, and "was in the world;" since also the Holy Spirit was sent thither, where He already was, for "the Spirit of the Lord filleth the world, and that which containeth all things hath knowledge of the voice;" whether the Lord was therefore "sent" because He was born in the flesh so as to be no longer hidden, and, as it were, came forth from the bosom of the Father, and appeared to the eyes of men in the form of a servant; and the Holy Spirit also was therefore "sent," because He too was seen as a dove in a corporeal form, and in cloven tongues, like as of fire; so that, to be sent, when spoken of them, means to go forth to the sight of mortals in some corporeal form from a spiritual hiding-place; which, because the Father did not, He is said only to have sent, not also to be sent. Our next inquiry was, Why the Father also is not sometimes said to be sent, if He Himself was manifested through those corporeal forms which appeared to the eyes of the ancients. But if the Son was manifested at these times, why should He be said to be "sent" so long after, when the fullness of time was come that He should be born of a woman; since, indeed, He was sent before also, viz., when He appeared corporeally in those forms? Or if He were not rightly said to be "sent," except when the Word was made flesh; why should the Holy Spirit be read of as "sent," of whom such an incarnation never took place? But if neither the Father, nor the Son, but the Holy Spirit was manifested through these ancient appearances; why should He too be said to be "sent" now, when He was also sent before in these various manners? Next we subdivided the subject, that it might be handled most carefully, and we made the question threefold, of which one part was explained in the second book, and two remain, which I shall next proceed to discuss. For we have already inquired and determined, that not only the Father, nor only the Son, nor only the Holy Spirit appeared in those ancient corporeal forms and visions, but either indifferently the Lord God, who is understood to be the Trinity itself, or some one person of the Trinity, whichever the text of the narrative might signify, through intimations supplied by the context.

Chapter 1.--What is to Be Said Thereupon.

4. Let us, then, continue our inquiry now in order. For under the second head in that division the question occurred, whether the creature was formed for that work only, wherein God, in such way as He then judged it to be fitting, might be manifested to human sight; or whether angels, who already existed, were so sent as to speak in the person of God, assuming a corporeal appearance from the corporeal creature for the purpose of their ministry; or else changing and turning their own body itself, to which they are not subject, but govern it as subject to themselves, into whatever forms they would, that were appropriate and fit for their actions, according to the power given to them by the Creator. And when this part of the question shall have been investigated, so far as God permit, then, lastly, we shall have to see to that question with which we started, viz., whether the Son and the Holy Spirit were also "sent" before; and if it be so, then what difference there is between that sending and the one of which we read in the Gospel; or whether neither of them were sent, except when either the Son was made of the Virgin Mary, or when the Holy Spirit appeared in a visible form, whether as a dove or in tongues of fire.

5. I confess, however, that it reaches further than my purpose can carry me to inquire whether the angels, secretly working by the spiritual quality of their body abiding still in them, assume somewhat from the inferior and more bodily elements, which, being fitted to themselves, they may change and turn like a garment into any corporeal appearances they will, and those appearances themselves also real, as real water was changed by our Lord into real wine; or whether they transform their own bodies themselves into that which they would, suitably to the particular act. But it does not signify to the present question which of these it is. And although I be not able to understand these things by actual experience, seeing that I am a man, as the angels do who do these things, and know them better than I know them, viz., how far my body is changeable by the operation of my will; whether it be by my own experience of myself, or by that which I have gathered from others; yet it is not necessary here to say which of these alternatives I am to believe upon the authority of the divine Scriptures, lest I be compelled to prove it, and so my discourse become too long upon a subject which does not concern the present question.