Thematic Bible: The propagation of, forbidden under severe penalties

[As for] a man who is factious [a heretical sectarian and cause of divisions], after admonishing him a first and second time, reject [him from your fellowship and have nothing more to do with him], Well aware that such a person has utterly changed (is perverted and corrupted); he goes on sinning [though he] is convicted of guilt and self-condemned.

If anyone comes to you and does not bring this doctrine [is disloyal to what Jesus Christ taught], do not receive him [do not accept him, do not welcome or admit him] into [your] house or bid him Godspeed or give him any encouragement. For he who wishes him success [who encourages him, wishing him Godspeed] is a partaker in his evil doings.