9 But see what answer the Lord gave to their dull apprehension. He saw that they could not bear the brilliance of the truth, and He tempered it with words. “Is it not written in your law,” that is, as given to you, “that I said, You are gods?” And the Lord called all the Scriptures generally, the law: although elsewhere He speaks more definitely of the law, distinguishing it from the prophets; as it is said, “The law and the prophets were until John;” and “On these two commandments hang all the law and the prophets.” Sometimes, however, He divided the same Scriptures into three parts, as where He says, “All things must be fulfilled which were written in the law, and the prophets, and the psalms, concerning me.” But now He includes the psalms also under the name of the law, where it is written, “I said, You are gods. If He calls them gods, to whom the word of God came, and the Scripture cannot be broken: say ye of Him, whom the Father has sanctified, and sent into the world, Thou blaspheme; because I said, I am the Son of God?” If the word of God came to men, that they might be called gods, how can the very Word of God, who is with God, be otherwise than God? If by the word of God men become gods, if by fellowship they become gods, can He by whom they have fellowship not be God? If lights which are lit are gods, is the light which enlightens not God? If through being warmed in a way by saving fire they are constituted gods, is He who gives them the warmth other than God? Thou approachest the light and art enlightened, and numbered among the sons of God; if you withdraw from the light, you fall into obscurity, and art accounted in darkness; but that light approaches not, because it never recedes from itself. If, then, the word of God makes you gods, how can the Word of God be otherwise than God? Therefore did the Father sanctify His Son, and send Him into the world. Perhaps some one may be saying: If the Father sanctified Him, was there then a time when He was not sanctified? He sanctified in the same way as He begot Him. For in the act of begetting He gave Him the power to be holy, because He begot Him in holiness. For if that which is sanctified was unholy before, how can we say to God the Father, “Hallowed be Your name”?
10. “If I do not the works of my Father, believe me not. But if I do, though ye will not believe me, believe the works; that you may know and believe that the Father is in me, and I in Him.” The Son says not, “the Father is in me, and I in Him,” as men can say it. For if we think well, we are in God; and if we live well, God is in us: believers, by participating in His grace, and being illuminated by Himself, are in Him, and He in us. But not so is it with the only-begotten Son: He is in the Father, and the Father in Him; as one who is equal is in him whose equal he is. In short, we can sometimes say, We are in God, and God is in us; but can we say, I and God are one? You are in God, because God contains you; God is in you, because you have become the temple of God: but because you are in God, and God is in you, can you say, He that sees me sees God; as the Only-begotten said, “He that has seen me, has seen the Father also;” and “I and the Father are one”? Recognize the prerogative of the Lord, and the privilege of the servant. The prerogative of the Lord is equality with the Father: the privilege of the servant is fellowship with the Saviour.
11. “Therefore they sought to apprehend Him.” Would they had apprehended by faith and understanding, not in wrath and murder! For now, my brethren, when I speak thus, it is the weak one wishing to apprehend what is strong, the small what is great, the fragile what is solid; and it is we ourselves— both you who are of the same matter as I am, and I myself who speak to you— who all wish to apprehend Christ. And what is it to apprehend Him? [If] you have understood, you have apprehended. But not as did the Jews: you have apprehended in order to possess, they wished to apprehend in order to make away with Him. And because this was the kind of apprehension they desired, what did He do to them? “He escaped out of their hands.” They failed to apprehend Him, because they lacked the hand of faith. The Word was made flesh; but it was no great task to the Word to rescue His own flesh from fleshy hands. To apprehend the Word in the mind, is the right apprehension of Christ.
12. “And He went away again beyond Jordan, into the place where John at first baptized; and there He abode. And many resorted unto Him, and said, John, indeed, did no miracle.” You remember what was said of John, that he was a light, and bore witness to the day. Why, then, say these among themselves, “John did no miracle”? John, they say, signalized himself by no miracle; he did not put devils to flight, he drove away no fever, he enlightened not the blind, he raised not the dead, he fed not so many thousand men with five or seven loaves, he walked not upon the sea, he commanded not the winds and the waves. None of these things did John, and in all he said he bore witness to this man. By lamp-light we may advance to the day. “John did no miracle: but all things that John spoke of this man were true.” Here are those who apprehended in a different way from the Jews. The Jews wished to apprehend one who was departing from them, these apprehended one who remained with them. In a word, what is it that follows? “And many believed on Him.”
Source: Tractates on the Gospel of John (New Advent)