Matthew 18:17
If he refuses to listen to them, tell the church; and if he refuses to listen to the church, treat him as a pagan or a taxgatherer.
2 Corinthians 5:16
Once convinced of this, then, I estimate no one by what is external; even though I once estimated Christ by what is external, I no longer estimate him thus.
Galatians 2:11
But when Cephas came to Antioch, I opposed him to his face. The man stood self-condemned.
1 Timothy 5:20
Those who are guilty of sin you must expose in public, to overawe the others.
Titus 2:15
Tell them all this, exhort and reprove, with full authority; let no one slight you.