Philippians 3:1-3
3 Further, my brothers and sisters, rejoice in the Lord! It is no trouble for me to write the same things to you again, and it is a safeguard for you. 2 Watch out for those dogs, those evildoers, those mutilators of the flesh. 3 For it is we who are the circumcision, we who serve God by his Spirit, who boast in Christ Jesus, and who put no confidence in the flesh—