Tito 3:10-12

Warn a divisive person once, and then warn them a second time. After that, have nothing to do with them. You may be sure that such people are warped and sinful; they are self-condemned. As soon as I send Artemas or Tychicus to you, do your best to come to me at Nicopolis, because I have decided to winter there.
Titus 3:10-12