Titus 3:8-11

This is a trustworthy statement; and concerning these things I want you to speak confidently, so that those who have believed God will be careful to engage in good deeds. These things are good and profitable for men. But avoid foolish controversies and genealogies and strife and disputes about the Law, for they are unprofitable and worthless. Reject a factious man after a first and second warning, knowing that such a man is perverted and is sinning, being self-condemned.