'Circumcision' in the Bible

in whom you were also circumcised with a circumcision not made with hands, in the putting off of the body of the sins of the flesh, in the circumcision of Christ;

where there can't be Greek and Jew, circumcision and uncircumcision, barbarian, Scythian, bondservant, freeman; but Christ is all, and in all.

and Jesus who is called Justus. These are my only fellow workers for the Kingdom of God who are of the circumcision, men who have been a comfort to me.