35. Come, heretic, what will your fatuous doctrine instruct us to believe of Christ; Christ, Who dispenses eternal life, Who is glorified of, and glorifies, the Father, Who overcame the world, Who, deserted, is not alone, but has the Father with Him, Who came out from God, and came from the Father? He is born with such divine powers; what of the nature and reality of God will you allow Him? It is in vain that we believe in the only true God the Father, unless we believe also in Him, Whom He sent, even Jesus Christ. Why do you hesitate? Tell us, what is Christ to be confessed? You deny what has been written: what is left, but to believe what has not been written? O unhappy wilfulness! O falsehood striving against the truth! Christ is united in belief and confession with the only true God the Father: what faith is it, pray, to deny Him to be true God, and to call Him a creature, when it is no faith to believe in the only true God without Christ? But you are narrow, heretic, and unable to receive the Holy Spirit. The sense of the heavenly words escapes you; stung with the asp's poison of error, you forget that Christ is to be confessed true God in the faith of the only true God, if we would obtain eternal life.
36. But the faith of the Church, while confessing the only true God the Father, confesses Christ also. It does not confess Christ true God without the Father the only true God; nor the Father the only true God without Christ. It confesses Christ true God, because it confesses the Father the only true God. Thus the fact that God the Father is the only true God constitutes Christ also true God. The Only-begotten God suffered no change of nature by His natural birth: and He Who, according to the nature of His divine origin was born God from the living God, is, by the truth of that nature, inalienable from the only true God. Thus there follows from the true divine nature its necessary result, that the outcome of true divinity must be a true birth, and that the one God could not produce from Himself a God of a second kind. The mystery of God consists neither in simplicity, nor in multiplicity: for neither is there another God, Who springs from God with qualities of His own nature, nor does God remain as a single Person, for the true birth of the Son teaches us to confess Him as Father. The begotten God did not, therefore, lose the qualities of His nature: He possesses the natural power of Him, Whose nature He retains in Himself by a natural birth. The divinity in Him is not changed, or degenerate, for if His birth had brought with it any defect, it would more justly cast upon the Nature, through which He came into being, the reflection of having failed to implant in its offspring the properties of itself. The change would not degrade the Son, Who had passed into a new substance by birth, but the Father, Who had been unable to maintain the constancy of His nature in the birth of the Son, and had brought forth something external and foreign to Himself.
37. But, as we have often said, the inadequacy of human ideas has no corresponding inadequacy in the unity of God the Father and God the Son: as though there were extension, or series, or flux, like a spring pouring forth its stream from the source, or a tree supporting its branch on the stem, or fire giving out its heat into space. In these cases we have expansion without any separation: the parts are bound together and do not exist of themselves, but the heat is in the fire, the branch in the tree, the stream in the spring. So the thing itself alone has an independent existence; the one does not pass into the other, for the tree and the branch are one and the same, as also the fire and the heat, the spring and the stream. But the Only-begotten God is God, subsisting by virtue of a perfect and ineffable birth, true Scion of the Unbegotten God, incorporeal offspring of an incorporeal nature, living and true God of living and true God, God of a nature inseparable from God. The fact of birth does not make Him God with a different nature, nor did the generation, which produced His substance, change its nature in kind.
38. Put in the dispensation of the flesh which He assumed, and through the obedience whereby He emptied Himself of the form of God, Christ, born man, took to Himself a new nature, not by loss of virtue or nature but by change of fashion. He emptied Himself of the form of God and took the form of a servant, when He was born. But the Father's nature, with which He was in natural unity, was not affected by this assumption of flesh; while Christ, though abiding in the virtue of His nature, yet in respect of the humanity assumed in this temporal change, lost together with the form of God the unity with the divine nature also. But the Incarnation is summed up in this, that the whole Son, that is, His manhood as well as His divinity, was permitted by the Father's gracious favour to continue in the unity of the Father's nature, and retained not only the powers of the divine nature, but also that nature's self. For the object to be gained was that man might become God. But the assumed manhood could not in any wise abide in the unity of God, unless, through unity with God, it attained to unity with the nature of God. Then, since God the Word was in the nature of God, the Word made flesh would in its turn also be in the nature of God. Thus, if the flesh were united to the glory of the Word, the man Jesus Christ could abide in the glory of God the Father, and the Word made flesh could be restored to the unity of the Father's nature, even as regards His manhood, since the assumed flesh had obtained the glory of the Word. Therefore the Father must reinstate the Word in His unity, that the offspring of His nature might again return to be glorified in Himself: for the unity had been infringed by the new dispensation, and could only be restored perfect as before if the Father glorified with Himself the flesh assumed by the Son.
39. For this reason, having already so well prepared their minds for the understanding of this belief, the Lord follows up the words, And this is eternal life, that they should know Thee, the only true God, and Him Whom Thou didst send, even Jesus Christ, with a reference to the obedience displayed in His incarnation, I have glorified Thee on the earth, I have accomplished the work which Thou gavest Me to do [1024] . And then, that we might know the reward of His obedience, and the secret purpose of the whole divine plan, He continued, And now, O Father, glorify Thou Me with Thine own self, with the glory which I had with Thee before the world was [1025] . Does any one deny that Christ remained in the nature of God or believe Him separable and distinct from the only true God? Let him tell us what is the meaning of this prayer. And now, O Father, glorify Thou Me with Thine own self. For what purpose should the Father glorify Him with His own self? What is the signification of these words? What follows from their signification? The Father neither stood in need of glory, nor had He emptied Himself of the form of His glory. How should He glorify the Son with His own self, and with that glory which He had with Him before the world was made? And what is the sense of which He had with Him? Christ does not say, "The glory which I had before the world was made, when I was with Thee," but, The glory which I had with Thee. When I was with Thee would signify, "when I dwelt by Thy side:" but which I had with Thee teaches the Mystery of His nature. Further, Glorify Me with Thyself is not the same as "Glorify Me." He does not ask merely that He may be glorified, that He may have some special glory of His own, but prays that He may be glorified of the Father with Himself. The Father was to glorify Him with Himself, that He might abide in unity with Him as before, since the unity with the Father's glory had left Him through the obedience of the Incarnation. And this means that the glorifying should reinstate Him in that nature, with which He was united by the Mystery of His divine birth; that He might be glorified of the Father with Himself; that He should resume all that He had had with the Father before; that the assumption of the servant's form should not estrange from Him the nature of the form of God, but that God should glorify in Himself the form of the servant, that it might become for ever the form of God, since He, Who had before abode in the form of God, was now in the form of a servant. And since the form of a servant was to be glorified in the form of God, it was to be glorified in Him in Whose form the fashion of the servant's form was to be honoured.
40. But these words of the Lord are not new, or attested now for the first time in the teaching of the Gospels, for He testified to this very mystery of God the Father glorifying the Son with Himself by the noble joy at the fulfilment of His hope, with which He rejoiced at the very moment when Judas went forth to betray Him. Filled with joy that His purpose was now to be fully accomplished, He said, Now is the Son of Man glorified and God is glorified in Him. If God is glorified in Him, He hath glorified Him in Himself, and straightway hath He glorified Him [1026] . How can we whose souls are burdened with bodies of clay, whose minds are polluted and stained with foul consciousness of sin, be so puffed up as to judge of His divine claim? How can we set up ourselves to criticise His heavenly nature, rebelling against God with our unhallowed and blasphemous disputations? The Lord enunciated the faith of the Gospel in the simplest words that could be found, and fitted His discourses to our understanding, so far as the weakness of our nature allowed Him, without saying anything unworthy of the majesty of His own nature. The signification of His opening words cannot, I think, be doubted, Now is the Son of Man glorified; that is, all the glory which He obtains is not for the Word but for His flesh: not for the birth of His Godhead, but for the dispensation of His manhood born into the world. What then, may I ask, is the meaning of what follows, And God is glorified in Him? I hear that God is glorified in Him; but what that can be according to your interpretation, heretic, I do not know. God is glorified in Him, in the Son of Man, that is: tell me, then, is the Son of Man the same as the Son of God? And since the Son of Man is not one and the Son of God another, but He Who is Son of God is Himself also Son of Man, Who, pray, is the God Who is glorified in this Son of Man, Who is also Son of God?
41. So God is glorified in the Son of Man, Who is also Son of God. Let us see, then, what is this third clause which is added, If God is glorified in Him, God hath also glorified Him in Himself. What, pray, is this secret mystery? God, in the glorified Son of Man, glorifies a glorified God in Himself! The glory of God is in the Son of Man, and the glory of God is in the glory of the Son of Man. God glorifies in Himself, but man is not glorified through himself. Again the God Who is glorified in the man, though He receives the glory, yet is Himself none other than God. But since in the glorifying of the Son of Man, the God, Who glorifies, glorifies God in Himself, I recognise that the glory of Christ's nature is taken into the glory of that nature which glorifies His nature. God does not glorify Himself; but He glorifies in Himself God glorified in man. And this "glorifies in Himself," though it is not a glorifying of Himself, yet means that He took the nature, which He glorified, into the glory of His own nature since the God, Who glorifies the God glorified in man, glorifies Him in Himself, He proves that the God Whom He glorifies is in Himself, for He glorifies Him in Himself. Come, heretic, whoever you be, produce the inextricable objections of your tortuous doctrine; though they bind themselves in their own tangles, yet, marshal them as you will, we shall not be in danger of sticking in their snares. The Son of Man is glorified; God is glorified in Him; God glorifies in Himself Him, Who is glorified in the man. It is not the same that the Son of Man is glorified, as that God is glorified in the Son of Man, or that God glorifies in Himself Him, Who is glorified in the man. Express in the terms of your unholy belief, what you mean by God being glorified in the Son of Man. It must certainly be either Christ Who is glorified in the flesh, or the Father Who is glorified in Christ. If it is Christ, Christ is manifestly God, Who is glorified in the flesh. If it is the Father, we are face to face with the mystery of the unity, since the Father is glorified in the Son. Thus, if you allow it to be Christ, despite yourself you confess Him God; if you understand it of God the Father, you cannot deny the nature of God the Father in Christ. Let this be enough concerning the glorified Son of Man and God glorified in Him. But when we consider that God glorifies in Himself God, Who is glorified in the Son of Man, by what loophole, pray, can your profane doctrine escape from the confession that Christ is very God according to the verity of His nature? God glorifies in Himself Christ, Who was born a man; is Christ then outside Him, when He glorifies Him in Himself? He restores to Christ in Himself the glory which He had with Himself, and now that the servant's form, which He assumed, is in turn assumed into the form of God, God Who is glorified in man is glorified in Himself; He was in God's self before the dispensation, by which He emptied Himself, and now He is united with God's self, both in the form of the servant, and in the nature belonging to His birth. For His birth did not make Him God of a new and foreign nature, but by generation He was made natural Son of a natural Father. After His human birth, when He is glorified in His manhood, He shines again with the glory of His own nature; the Father glorifies Him in Himself, when He is assumed into the glory of His Father's nature, of which He had emptied Himself in the dispensation.