Philippians 3:1-3: Beware the Dogs!
1 Finally, my brothers, rejoice in the Lord. To write the same things again is no trouble to me, and it is a safeguard for you. 2 Beware of the dogs! Beware of the evil workers! Beware of the mutilation! 3 For we are the circumcision, who worship in the Spirit of God and boast in Christ Jesus and put no confidence in the flesh
Philippians 3:1-3