Confession of Faith
Chapter 30: Of Church Censures
For the better attaining of these ends, the officers of the church are to proceed by admonition; suspension from the sacrament of the Lord’s Supper for a season; and by excommunication from the church; according to the nature of the crime, and demerit of the person.1
1 Thessalonians 5:12
We ask you, brothers, to respect those who labor among you and are over you in the Lord and admonish you,
2 Thessalonians 3:6
Now we command you, brothers, in the name of our Lord Jesus Christ, that you keep away from any brother who is walking in idleness and not in accord with the tradition that you received from us.
2 Thessalonians 3:14-15
If anyone does not obey what we say in this letter, take note of that person, and have nothing to do with him, that he may be ashamed. Do not regard him as an enemy, but warn him as a brother.
1 Corinthians 5:4-5
When you are assembled in the name of the Lord Jesus and my spirit is present, with the power of our Lord Jesus, you are to deliver this man to Satan for the destruction of the flesh, so that his spirit may be saved in the day of the Lord.
1 Corinthians 5:13
God judges those outside. “Purge the evil person from among you.”
If he refuses to listen to them, tell it to the church. And if he refuses to listen even to the church, let him be to you as a Gentile and a tax collector.
As for a person who stirs up division, after warning him once and then twice, have nothing more to do with him, (ESV)