'Of the Circumcision' in the Bible

And they of the circumcision who were believers, as many as came with Peter, were amazed, because even on the Gentiles the gift of the holy Ghost was poured out.

And when Peter went up to Jerusalem, they of the circumcision disputed with him,

and the father of circumcision, not to those who are of the circumcision merely, but who also tread in the steps of the faith of our father Abraham, which he exercised while uncircumcised.

For before certain persons came from James, he did eat with the Gentiles, but when they were come, he withdrew, and separated himself, fearing those of the circumcision.

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