John 14:28

(de Trin. ix) Or thus: If the Father is greater by virtue of giving, is the Son less by confessing the gift? The giver is the greater, but He to whom unity with that giver is given, is not the less.

(Hom. lxxv. 4) Or thus: The Apostles did not yet know what the resurrection was of which He spoke when He said, I go, and come again to you; or what they ought to think of it. They only knew the great power of the Father. So He tells them: Though ye fear I shall not be able to save Myself, and do not trust to My appearing again after My crucifixion; yet when ye hear that I go to My Father, ye should rejoice, because I go to one greater, one able to dissolve and change all things. All this is said in accommodation to their weakness: as we see from the next words; And now I have told you before it come to pass; that when it does come to pass, ye may believe.

(Tract. lxxviii. 1) Though He was only going for a time, their hearts would be troubled and afraid for what might happen before He returned; lest in the absence of the Shepherd the wolf might attack the flock: Ye have heard how I said unto you, I go away, and come again to you. In that He was man, He went: in that He was God, He stayed. Why then be troubled and afraid, when He left the eye only, not the heart? To make them understand that it was as man that He said, I go away, and come again to you; He adds, If ye loved Me ye would rejoice, because I said, I go unto My Father; for My Father is greater than I. In that the Son then is unequal with the Father, through that inequality He went to the Father, from Him to come again to judge the quick and dead: in that He is equal to the Father, He never goes from the Father, but is every where altogether with Him in that Godhead, which is not confined to place. Nay, the Son Himself, because that being equal to the Father in the form of God, He emptied Himself, not losing the form of God, but taking that of a servant, is greater even than Himself: the form of God which is not lost, is greater than the form of a servant which was put on. In this form of a servant, the Son of God is inferior not to the Father only, but to the Holy Ghost; in this the Child Christ was inferior even to His parents; to whom we read, He was subject. Let us acknowledge then the twofold substance of Christ, the divine, which is equal to the Father, and the human, which is inferior. But Christ is both together, not two, but one Christ: else the Godhead is a quaternity, not a Trinity. Wherefore He says, If ye loved Me, ye would rejoice, because I said, I go to the Father; for human nature should exult at being thus taken up by the Only Begotten Word, and made immortal in heaven; at earth being raised to heaven, and dust sitting incorruptible at the right hand of the Father. Who, that loves Christ, will not rejoice at this, seeing, as he doth, his own nature immortal in Christ, and hoping that He Himself will be so by Christ.

We have just heard, brethren, these words of the Lord, which He addressed to His disciples: "Let not your heart be troubled, neither let it be afraid. Ye have heard how I said unto you, I go away, and come unto you: if ye loved me, ye would surely rejoice, because I go unto the Father; for the Father is greater than I." Their hearts might have become filled with trouble and fear, simply because of His going away from them, even though intending to return; lest, possibly, in the very interval of the shepherd's absence, the wolf should make an onset on the flock. But as God, He abandoned not those from whom He departed as man: and Christ Himself is at once both man and God. And so He both went away in respect of His visible humanity, and remained as regards His Godhead: He went away as regards the nature which is subject to local limitations, and remained in respect of that which is ubiquitous. Why, then, should their heart be troubled and afraid, when His quitting their eyesight was of such a kind as to leave unaltered His presence in their heart? Although even God, who has no local bounds to His presence, may depart from the hearts of those who turn away from Him, not with their feet, but their moral character; just as He comes to such as turn to Him, not with their faces, but in faith, and approach Him in the spirit, and not in the flesh. But that they might understand that it was only in respect of His human nature that He said, "I go and come to you," He went on to say, "If ye loved me, ye would surely rejoice, because I go unto the Father; for the Father is greater than I." And so, then, in that very respect wherein the Son is not equal to the Father, in that was He to go to the Father, just as from Him is He hereafter to come to judge the quick and the dead: while in so far as the Only-begotten is equal to Him that begat, He never withdraws from the Father; but with Him is everywhere perfectly equal in that Godhead which knows of no local limitations. For "being as He was in the form of God," as the apostle says, "He thought it not robbery to be equal with God." For how could that nature be robbery, which was His, not by usurpation, but by birth? "But He emptied Himself, taking upon Him the form of a servant;" and so, not losing the former, but assuming the latter, and emptying Himself in that very respect wherein He stood forth before us here in a humbler state than that wherein He still remained with the Father. For there was the accession of a servant-form, with no recession of the divine: in the assumption of the one there was no consumption of the other. In reference to the one He says, "The Father is greater than I;" but because of the other, "I and my Father are one."

Let the Arian attend to this, and find healing in his attention; that wrangling may not lead to vanity, or, what is worse, to insanity. For it is the servant-form which is that wherein the Son of God is less, not only than the Father, but also than the Holy Spirit; and more than that, less also than Himself, for He Himself, in the form of God, is greater than Himself. For the man Christ does not cease to be called the Son of God, a name which was thought worthy of being applied even to His flesh alone as it lay in the tomb. And what else than this do we confess, when we declare that we believe in the only-begotten Son of God, who, under Pontius Pilate, was crucified, and buried? And what of Him was buried, save the flesh without the spirit? And so in believing in the Son of God, who was buried, we surely affix the name, Son of God, even to His flesh, which alone was laid in the grave. Christ Himself, therefore, the Son of God, equal with the Father because in the form of God, inasmuch as He emptied Himself, without losing the form of God, but assuming that of a servant, is greater even than Himself; because the unlost form of God is greater than the assumed form of a servant. And what, then, is there to wonder at, or what is there out of place, if, in reference to this servant-form, the Son of God says, "The Father is greater than I;" and in speaking of the form of God, the self-same Son of God declares, "I and my Father are one"? For one they are, inasmuch as "The Word was God;" and greater is the Father, inasmuch as "the Word was made flesh." Let me add what cannot be gainsaid by Arians and Eunomians: in respect of this servant-form, Christ as a child was inferior also to His own parents, when, according to Scripture, "He was subject" as an infant to His seniors. Why, then, heretic, seeing that Christ is both God and man, when He speaketh as man, dost thou calumniate God? He in His own person commends our human nature; dost thou dare in Him to asperse the divine? Unbelieving and ungrateful as thou art, wilt thou degrade Him who made thee, just for the very reason that He is declaring what He became because of thee? For equal as He is with the Father, the Son, by whom man was made, became man, in order to be less than the Father: and had He not done so, what would have become of man?