For it is said: "Behold, the Lamb of God, who takes away the sins of the world" (Jn 1:29). Yet even to those who love dispute, it is plain that these are human names.
If some have taken them as names of the Godhead, let them also call Him "a curse" (Gal 3:13), "the form of a servant" (Phil 2:7), and everything of that kind.
But if none of these names is proper to the divine nature, then it remains to understand them as names according to the divine economy. Just as He is said to have become man by assuming human nature, so He is called our High Priest insofar as He is man.
The apostolic sayings also teach us this. For the Apostle shows that Christ passed through the "heavens." Yet the Godhead of the Master Christ has an uncircumscribed nature.
It is everywhere and present to all things. The Master Himself taught us this, for He says, "No one has ascended into heaven but He who descended from heaven, the Son of Man, who is in heaven" (Jn 3:13).
Thus, when He was below and conversed with men, He said that He was also above. Therefore we ought to know that some names belong to theology and others to the teaching concerning the divine economy.
The divine Apostle showed us that our great High Priest first entered the true rest and became higher than the heavens. He then commands us to hold fast the confession.
By "confession" he means our faith. For we confess that we believe not only in the Father, the Son, and the Holy Spirit, but also in the resurrection of the dead, eternal life, and the Kingdom of Heaven.
The Church, following in the footsteps of the Apostles, beholds in the Master Christ both perfect divinity and perfect humanity.
He assumed a body, not because He needed a body, but so that through it He might grant immortality to all other bodies. In the same way, He also assumed a soul that governs the body.
He did this so that through it every soul might become a partaker of unchangeability. For souls, though immortal, are not unchangeable, but are subject to many and frequent changes, delighting now in one thing and then in another.
For this reason we sin, turning aside from the right path and becoming attached to what is worse. After the resurrection, bodies will enjoy immortality and incorruption, and souls will enjoy impassibility and unchangeability.
For this reason, having assumed a body and a soul, the Only-begotten Son of God preserved them free from every vice and offered them in sacrifice for the human race.
For this reason He is called High Priest (Heb 4:14), not as God, but as man. He Himself offered the sacrifice as man, and He received it together with the Father and the Holy Spirit as God.
If only Adam's body had sinned, then it alone would have needed healing. But since the soul sinned not only together with it, but even before it, it was certainly just to heal the soul also.
For first the reasoning depicts the sin, and then, in accordance with this, the sin is committed through the body. Yet perhaps it is unnecessary to prove this by arguments from reason, when divine Scripture proclaims it clearly.
The divine David and the still more divine Peter expressly teach this. The former foretells it in advance, and the latter explains the prophecy.
The first of the Apostles speaks thus: "Being a prophet, David knew that God had sworn with an oath to him that from the fruit of his loins, according to the flesh, He would raise up Christ to sit on his throne.
He foresaw and spoke concerning the resurrection of Christ, that His soul was not left in Hades, nor did His flesh see corruption" (Acts 2:30-31; cf. 2 Sam 7:12; Ps 131:11; 15:10).
In these few words he taught us many things at once. First, the assumed nature traces its lineage from the loins of David.
Second, the Son of God assumed not only a body, but also an immortal soul. Moreover, He delivered over to death what He had received from us, and then raised it again, as He willed.
This is His own saying: "Destroy this temple, and in three days I will raise it up" (Jn 2:19). We also know that the divine nature is immortal.
For what was passible suffered, while what was impassible remained impassible. God the Word was incarnate not in order to show the impassible nature as passible, but to grant impassibility to the passible nature through suffering.
The Lord Himself speaks in the holy Gospels in one place thus: "I have authority to lay down My soul, and I have authority to take it again. No one takes it from Me.
I lay it down of Myself, that I may take it again" (Jn 10:18, 17). In another place He says, "For this reason the Father loves Me, because I lay down My soul for the sheep" (Jn 10:15, 17).
Again He says, "Now My soul is troubled" (Jn 12:27). Elsewhere He says, "My soul is sorrowful unto death" (Mt 26:38).
Concerning His body He says, "The bread that I shall give is My flesh, which I shall give for the life of the world" (Jn 6:51).
When He handed down the divine Mysteries, He broke the symbol, the bread, and distributed it. He added, "This is My body, broken for you for the remission of sins" (Mt 26:26; Mk 14:22; Lk 22:19; 1 Cor 11:24).
Again He said, "This is My blood, shed for many for the remission of sins" (Mt 26:28). And again, "Unless you eat the flesh of the Son of Man and drink His blood, you have no life in you."
And again: "He who eats My flesh and drinks My blood has eternal life in himself" (Jn 6:53-54).
Many other similar passages may be found in both the Old and the New Testament. They prove the assumption of both body and soul, and likewise that the body and soul of Jesus Christ trace their lineage from Abraham and David.
Joseph of Arimathea came to Pilate and asked for the body of Jesus. The four holy Gospels clearly teach us how Joseph took the body, wrapped it in a linen cloth, and committed it to the tomb (Mt 27:57; Mk 15:43; Lk 23:52; Jn 19:38).
Cf. Eranistes, dialogue III: Migne, PG 83, col. 225, p. 179.