And you, who once were alienated and hostile in mind, doing evil deeds, he has now reconciled in his body of flesh by his death
Therefore, if anyone is in Christ, he is a new creation. The old has passed away; behold, the new has come.
2 Corinthians 5:17
Christ took on the flesh of Adam, the flesh of the old creation, in order to kill it and raise it again in the new.