Titus 3:9-11

VIN(i) 9 But avoid foolish controversies and genealogies and arguments and quarrels about the Law; for they are unprofitable and worthless. 10 Warn a man who is factious once, and then warn him a second time. After that, have nothing to do with him, 11 you may be sure that such a man is perverted and sinning, and is self-condemned.