Augustine of Hippo

This refers to Deuteronomy [21:23]: "Cursed be every man hanged from a tree." For as the crucifixion of the old man is symbolized in the cross of the Lord, so the rebirth of the new man is signified in the resurrection. It is clear that according to Paul we are in the place of the old man who is accursed. No one doubts that it was because of him that the Lord was called "sin," because "he bore our sins" and "he was made sin for us," and "by sin he condemned sin."