8 The saying is sure.

I desire you to insist on these things, so that those who have believed in God may be careful to apply themselves to good deeds; these are excellent and profitable to men. 9 But avoid stupid controversies, genealogies, dissensions, and quarrels over the law, for they are unprofitable and futile. 10 As for a man who is factious, after admonishing him once or twice, have nothing more to do with him, 11 knowing that such a person is perverted and sinful; he is self-condemned.