Athanasius of Alexandria

The Word, being the image of the Father and immortal, took the form of a servant, and as man he underwent death for us in his flesh, that thereby he might offer himself for us through death to the Father. Likewise also, as man, he is said because of us and for us to be highly exalted, that as by his death we all died in Christ, so again in Christ himself we might be highly exalted, being raised from the dead and ascending into heaven, "where the forerunner Jesus has entered for us, not into the figures of the true, but into heaven itself, now to appear in the presence of God for us." But if no Christ has entered into heaven itself for us, even though he was previously and always Lord and Framer of the heavens, then it is for us, therefore, that the present exaltation is written. And as he himself, who sanctifies all, also says that he sanctifies himself to the Father for our sakes, not that the Word may become holy but that he himself may in himself sanctify all of us, in like manner we must take the present phrase, "He highly exalted him"—not that he himself needed to be exalted, for he is already the highest, but that he may become righteousness for us, and that we may be exalted in him and may enter the gates of heaven, which he has also opened for us, the forerunners saying, "Lift up your gates, O you rulers, and be lifted up, you everlasting doors, and the King of glory shall come in." For here also the gates were not shut on him who is the Lord and Maker of all, but because of us this too is written, to whom the door of paradise was shut. And therefore in a human relation, because of the flesh that he bore, it is said of him, "Lift up your gates," and "shall come in," as if a man were entering; but in a divine relation on the other hand it is said of him, since "the Word was God," that he is the "Lord" and the "King of glory." Such our exaltation the Spirit foreannounced in the eighty-ninth psalm, saying, "And in your righteousness shall they be exalted, for you are the glory of their strength." And if the Son is Righteousness, then he is not exalted because he himself was in need, but it is we who are exalted in that Righteousness, which is he.