Philippians 3:1-4 - Warning Against Evil Workers
1 Finally, my brethren, rejoice in the Lord. To write the same things to you to me, indeed, is not irksome, while for you it is safe.
2 Beware of the dogs, beware of the evil-workers, beware of the mutilation. 3 For we are the circumcision, who worship by the Spirit of God, and glory in Christ Jesus, and have no confidence in flesh: 4 though I might have confidence even in flesh; if any other man supposes that he has occasion for confidence in flesh, I more: