Therefore remember that you, once Gentiles in the flesh—who are called Uncircumcision by what is called the Circumcision made in the flesh by hands—that at that time you were without Christ, being aliens from the commonwealth of Israel and strangers from the covenants of promise, having no hope and without God in the world. But now in Christ Jesus you who once were far off have been brought near by the blood of Christ. For He Himself is our peace, who has made both one, and has broken down the middle wall of separation, having abolished in His flesh the enmity, that is, the law of commandments contained in ordinances, so as to create in Himself one new man from the two, thus making peace, and that He might reconcile them both to God in one body through the cross, thereby putting to death the enmity. And He came and preached peace to you who were afar off and to those who were near. For through Him we both have access by one Spirit to the Father. Now, therefore, you are no longer strangers and foreigners, but fellow citizens with the saints and members of the household of God, having been built on the foundation of the apostles and prophets, Jesus Christ Himself being the chief cornerstone, in whom the whole building, being fitted together, grows into a holy temple in the Lord, in whom you also are being built together for a dwelling place of God in the Spirit. (Ephesians 2:11–22)
Through His Mystery, surely, we have been reconciled to God and are no longer aliens nor adversaries. For when we were worshiping other gods and serving idols, it was as if we were at war with the Father, that is, with God. But a middleman, Christ, reconciled us in Himself by His Mystery and passion.… Christ, says Paul, is our peace, whom elsewhere he calls mediator. For Christ has put Himself between the separated realms: because souls born from the fount of God are held in this world—or were being held; and a middle wall, a kind of barrier and partition, was intruding through the allures of the flesh and worldly desires. Christ, by His Mystery, passion, cross, and teaching, broke down the middle wall. That is, conquering the flesh (and teaching that it is to be conquered) and breaking down the desires of the world (and teaching that they are to be broken down), Christ razed the middle wall. But it is in the flesh, Paul is saying, that Christ is certainly breaking down the hostilities. Therefore it is not of our labor (as I have pointed out) that we break them down; rather, faith alone in Christ is salvation for us. For He has broken down all the hostilities in His flesh. So too He broke down the law of commandments, nullifying it in its decrees—as He did not nullify it as far as works or sabbaths are concerned (for these have been decreed in the law and are themselves commandments). Christ did not nullify the law, I say, as far as precepts regarding such observances understood in a fleshly sense are concerned. Once the [other decrees] were nullified, the middle which had intruded was razed; and souls are no longer hindered by the world as if by a barrier (that is, by worldly, i.e., fleshly, cravings, thoughts, and desires) from seeing, recognizing, and following God, and even being joined to God.
This deed is the Mystery of the cross: that all things inimical to souls and to our spirit (i.e., worldly desires, cravings of the flesh, and the flesh itself which is somehow corrupted and weak) might be carried off to their punishment. Through the cross, then Christ eliminated the hostilities—that is, everything opposing souls. And where did He eliminate them? In His own self. For this reason Christ assumed flesh: that He might overcome the flesh in His own self; and that in this way, He might through the flesh be of use to the flesh by eliminating its corruption, by assuming pure and eternal flesh, and the whole body of Deity through the resurrection—since all things are made spirit, as Paul teaches in many places and is self-evident.
Marius Victorinus, Commentary on Ephesians 1.2.14–16