Titus 3:9-12

But stay away from those who have foolish arguments and talk about useless family histories and argue and quarrel about the law. Those things are worth nothing and will not help anyone. After a first and second warning, avoid someone who causes arguments. You can know that such people are evil and sinful; their own sins prove them wrong. When I send Artemas or Tychicus to you, make every effort to come to me at Nicopolis, because I have decided to stay there this winter.