TSK
Treasury of Scripture Knowledge references in WEB.
The scribes and the Pharisees, when they saw that he was eating with the sinners and tax collectors, said to his disciples, "Why is it that he eats and drinks with tax collectors and sinners?"
They have been informed about you, that you teach all the Jews who are among the Gentiles to forsake Moses, telling them not to circumcise their children neither to walk after the customs.
He is the father of circumcision to those who not only are of the circumcision, but who also walk in the steps of that faith of our father Abraham, which he had in uncircumcision.
Now we command you, brothers, in the name of our Lord Jesus Christ, that you withdraw yourselves from every brother who walks in rebellion, and not after the tradition which they received from us.