Tractates on John 35
The Jews then answered, "Thou bearest witness of thyself; thy witness is not true." Let us see what they hear; let us also hear, yet not as they did: they despising, we believing; they wishing to slay Christ, we desiring to live through Christ. Let this difference distinguish our ears and minds from theirs, and let us hear what the Lord answers to the Jews. "Jesus answered and said to them, Though I bear witness of myself, my witness is true; because I know whence I came and whither I go." The light shows both other things and also itself. Thou lightest a lamp, for instance, to look for thy coat, and the burning lamp affords thee light to find thy coat; dost thou light the lamp to see itself when it burns? A burning lamp is indeed capable at the same time of exposing to view other things which the darkness covered, and also of showing itself to thine eyes. So also the Lord Christ distinguished between His faithful ones and His Jewish enemies, as between light and darkness: as between those whom He illuminated with the ray of faith, and those on whose closed eyes He shed His light. So, too, the sun shines on the face of the sighted and of the blind; both alike standing and facing the sun are shone upon in the flesh, but both are not enlightened in the eyesight. The one sees, the other sees not: the sun is present to both, but one is absent from the present sun. So likewise the Wisdom of God, the Word of God, the Lord Jesus Christ, is everywhere present, because the truth is everywhere, wisdom is everywhere. One man in the east understands justice, another man in the west understands justice; is justice which the one understands a different thing from that which the other understands? In body they are far apart, and yet they have the eyes of their minds on one object. The justice which I, placed here, see, if justice it is, is the same which the just man, separated from me in the flesh by ever so many days' journey, also sees, and is united to me in the light of that justice. Therefore the light bears witness to itself; it opens the sound eyes and is its own witness, that it may be known as the light. But how about the unbelievers? Is it not present to them? It is present also to them, but they have not eyes of the heart with which to see it. Hear the sentence fetched from the Gospel itself concerning them: "And the light shineth in darkness, and the darkness comprehended it not." Hence the Lord saith, and saith truly, "Though I bear witness of myself, my witness is true; because I know whence I came and whither I go." He meant us to understand the Father here: the Son gave glory to the Father. Himself the equal glorifies Him by whom He was sent. How ought man to glorify Him by whom he was created!
"I know whence I came and whither I go." He who speaks to you in person has what He has not left, and yet He came; for by coming He departed not thence, nor has He forsaken us by returning thither. Why marvel ye? It is God: this cannot be done by man; it cannot be done even by the sun. When it goes to the west it leaves the east, and until it returns to the east, when about to rise, it is not in the east; but our Lord Jesus Christ both comes and is there, both returns and is here. Hear the evangelist himself speaking in another place, and, if thou canst, understand it; if not, believe it: "God," saith he, "no man hath ever seen, but the only-begotten Son, who is in the bosom of the Father, He hath declared Him." He said not was in the bosom of the Father, as if by coming He had quitted the Father's bosom. Here He was speaking, and yet He declared that He was there; and when about to depart hence, what said He? "Lo, I am with you always, even unto the end of the world."
The witness of the light then is true, whether it be manifesting itself or other things; for without light thou canst not see light, and without light thou canst not see any other thing whatever that is not light. If light is capable of showing other things which are not lights, is it not capable of showing itself? Does not that discover itself, without which other things cannot be made manifest? A prophet spoke a truth; but whence had he it, unless he drew it from the fountain of truth? John spoke a truth; but whence he spoke it, ask himself: "We all," saith he, "have received of His fullness." Therefore our Lord Jesus Christ is worthy to bear witness to Himself. But in any case, my brethren, let us who are in the night of this world hear also prophecy with earnest attention; for now our Lord willed to come in humility to our weakness and the deep night-darkness of our hearts: He came as a man to be despised and to be honored, He came to be denied and to be confessed; to be despised and to be denied by the Jews, to be honored and confessed by us: to be judged and to judge; to be judged unjustly, to judge righteously. Such then He came that He behoved to have a lamp to bear witness to Him. For what need was there that John should, as a lamp, bear witness to the day, if the day itself could be looked upon by our weakness? But we could not look upon it: He became weak for the weak; by infirmity He healed infirmity; by mortal flesh He took away the death of the flesh; of His own body He made a salve for our eyes. Since, therefore, the Lord is come, and since we are still in the night of the world, it behoves us to hear also prophecies.
For it is from prophecy that we convince gainsaying pagans. Who is Christ says the pagan. To whom we reply, He whom the prophets foretold. What prophets asks he. We quote Isaiah, Daniel, Jeremiah, and other holy prophets: we tell him that they came long before Christ, by what length of time they preceded His coming. We make this reply then: Prophets came before Him, and they foretold His coming. One of them answers: What prophets? We quote for him those which are daily read to us. And, said he, Who are these prophets? We answer: Those who also foretold the things which we see come to pass. And he urges: You have forged these for yourselves, you have seen them come to pass, and have written them in what books you pleased, as if their coming had been predicted. Here in opposition to pagan enemies the witness of other enemies offers itself. We produce books written by the Jews, and reply: Doubtless both you and they are enemies of our faith. Hence are they scattered among the nations, that we may convince one class of enemies by another.
Behold, even lamps bear witness to the day, because of our weakness, for we cannot bear and look at the brightness of the day. In comparison, indeed, with unbelievers, we Christians are even now light; as the apostle says, "For ye were once darkness, but now light in the Lord: walk as children of light:" and he says elsewhere, "The night is far spent, the day is at hand: let us therefore cast away the works of darkness, and put on us the armor of light; let us walk honestly as in the day." Yet that even the day in which we now are is still night, in comparison with the light of that to which we are to come, listen to the Apostle Peter: he says that a voice came to the Lord Christ from the excellent glory, "Thou art my beloved Son, in whom I am well pleased. This voice," said he, "which came from heaven, we heard, when we were with Him in the holy mount." But because we were not there, and have not then heard this voice from heaven, the same Peter says to us, "And we have a more sure word of prophecy." You have not heard the voice come from heaven, but you have a more sure word of prophecy. For the Lord Jesus Christ, foreseeing that there would be certain wicked men who would calumniate His miracles, by attributing them to magical arts, sent prophets before Him. For, supposing He was a magician, and by magical arts caused that He should be worshipped after His death, was He then a magician before He was born? Hear the prophets, O man dead, and breeding the worms of calumny, hear the prophets: I read, hear them who came before the Lord. "We have," saith the Apostle Peter, "a more sure word of prophecy, to which ye do well to give heed, as to a lamp in a dark place, until the day dawn, and the day-star arise in your hearts."
When, therefore, our Lord Jesus Christ shall come, and, as the Apostle Paul also says, will bring to light the hidden things of darkness, and will make manifest the thoughts of the heart, that every man may have praise from God; then, in presence of such a day, lamps will not be needed: no prophet shall then be read to us, no book of an apostle shall be opened; we shall not require the witness of John, we shall not need the Gospel itself. Accordingly all Scriptures shall be taken out of the way,-which, in the night of this world, were as lamps kindled for us that we might not remain in darkness,-when all these are taken away, that they may not shine as if we needed them, and the men of God, by whom these were ministered to us, shall themselves, together with us, behold that true and clear light. Well, what shall we see after these aids have been removed? Wherewith shall our mind be fed? Wherewith shall our gaze be delighted? Whence shall arise that joy which neither eye hath seen, nor ear heard, nor hath gone up into the heart of man? What shall we see? I beseech you, love with me, by believing run with me: let us long for our home above, let us pant for our home above, let us feel that we are strangers here. What shall we see then? Let the Gospel now tell us: "In the beginning was the Word, and the Word was with God, and the Word was God." Thou shalt come to the fountain from which a little dew has already besprinkled thee: thou shalt see that very light, from which a ray was sent aslant and through many windings into thy dark heart, in its purity, for the seeing and bearing of which thou art being purified. John himself says, and this I cited yesterday: "Beloved, we are the sons of God; and it hath not yet appeared what we shall be: we know that, when He shall appear, we shall be like Him, for we shall see Him even as He is." I feel that your affections are being lifted up with me to the things that are above: but the body, which is corrupt, weighs down the soul; and, the earthly habitation depresses the mind while meditating many things. I am about to lay aside this book, and you too are going to depart, every man to his own house. It has been good for us to have been in the common light, good to have been glad therein, good to have rejoiced therein; but when we part from one another, let us not depart from Him.
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Catena Aurea by Aquinas
(Tract. xxxv. 6) The witness of light is true, whether the light show itself, or other things. The Prophet spake the truth, but whence had he it, but by drawing from the fount of truth? Jesus then is a competent witness to Himself. (s. 5). For I know whence I come, and whither I go: this has reference to the Father; for the Son gave glory to the Father who sent Him. How greatly then should man glorify the Creator, who made Him. He did not separate from His Father, however, when He came, or desert us when He returned: unlike that sun which in going to the west, leaves the east. And as that sun throws its light on the faces both of him who sees, and him who sees not; only the one sees with the light, the other sees not: so the Wisdom of God, the Word, is every where present, even to the minds of unbelievers; but they have not the eyes of the understanding, wherewith to see. To distinguish then between believers and enemies among the Jews, as between light and darkness, He adds, But ye cannot tell whence I come, and whither I go. (Tract. xxxvi. 3). These Jews saw the man, and did not believe in the God, and therefore our Lord says, Ye judge after the flesh, i. e. in saying, Thou bearest record of Thyself, Thy record is not true.
(Tract. xxxvi. 3. in Joan.) Understanding Me not as God, and seeing Me as man, ye think Me arrogant in bearing witness of Myself. For any man who bears high testimony to himself, is thought proud and arrogant. But men are frail, and may either speak the truth, or lie: the Light cannot lie.
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Commentary on the Gospel of John, Book 5
On Christ saying that He is what He is by Nature and truly (for He openly declared, I am the Light of the world) the multitude of the Pharisees unrecking of danger deemed that He spake falsely. For in their exceeding folly they knew not that when some set forth their own nature and tell what is essentially inherent in them, we shall not, if we think aright, suppose that they do so out of boasting, nor shall we say that they are bent on hunting vain-glory, but rather that they declare what they really are. As for example we say that when an angel pointing out his own nature says, I am an angel; when a man showing what he is says, I am a man: yea, if one should clothe with voice the sun, and it teaching the property of its nature should say, I hasting around the circuit of the heaven, let forth bright light to those on the earth:----one would not reasonably suppose, that it were witnessing to itself things not its, but what it really was by nature. In the same way (I deem) as to our Saviour Christ too, even though He says that He is the Light, He will say the truth, and will be found boasting not less than they in things external to Him.
The many therefore living in ill-instructedness, not understanding Emmanuel, suppose that He is vain-glorious and attack Him as though one of us, and have not shuddered to say, Thy record is not true, to Him Who cannot lie, for guile was not found in His Mouth, as it is written. But it behoved Him to lead by the hand them who were astray, having fallen away exceedingly from the truth, and gone away from right reasoning, and in all forbearance to tell them that they had missed of what was becoming, unholily ascribing the love of even lying to Him Who is from above and begotten of God the Father. For true (He says) is My record, even though I hear record of Myself. For in men is sometimes seen the desire from self-love of witnessing things most excellent to themselves, even though they have them not (for prone to ill is their nature); but to Me (He says) belongs not the power of being sick of the same ills as those on the earth. For I know whence I am, Light of Light and Very God of Very God the Father, having the Nature that is beyond the reach of infirmity. For even though (He says) I became Man because of My Love for men, yet not on this account shall I be deemed bereft of God-befitting Dignity, but I remain what I am by Nature, God. A clear proof of this, is My knowing whither I go: for I shall ascend unto the heavens to the Father of Whom I am. This I suppose one would say pertained not to a man as we are, but to Him Who is by Nature God even though He became Man. Hence the words I know whence I am, indicates that the Son is by Nature of the Father, and the whither I go, a demonstration of God-befitting Authority (for He will ascend as God, above the heavens, as Paul saith); yet hath it some fit threat, even if not altogether clear, against the impiety of the Jews. For that He shall full soon depart altogether from their race, does He here evidently say; and leaving them in dearth of the Divine Light, will prepare them for being in ignorance and deep darkness, as He shows them elsewhere more clearly: for He says, While ye have the Light, walk in the light lest darkness come upon you.
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