Matthew 18:17
And if he refuses to listen to them [i.e., the witnesses], explain the [whole] matter to the church [i.e., probably a specially called meeting of mature Christians to resolve the matter]. And if he refuses to listen to the church also, [i.e., to acknowledge his sin and repent of it], consider him like an [unconverted] Gentile or tax collector [i.e., do not have fellowship with him].
John 15:2
He will cut off [See verse 6] every branch [i.e., follower of Christ] who is in [fellowship with] me that does not bear fruit. And He will prune every branch that does bear fruit, so it will bear more fruit.
1 Corinthians 5:5-6
to turn such a person over to Satan for his body to be destroyed [Note: This probably refers to his removal from their fellowship. See verse 2], in order for his spirit to be saved in the day of the Lord [i.e., the judgment day]. [Note: This implies that his removal from their fellowship will have produced a genuine repentance before that time].
1 Corinthians 5:13
For what business is it of mine to judge outsiders? [i.e., non-Christians]; God judges them. But should you not judge those people who are inside? [i.e., Christians]. [So], remove the evil person from your fellowship [See Deut. 17:7].
Titus 3:10
After you have warned a divisive person twice, have nothing more to do with him [i.e., withdraw spiritual fellowship from him].
2 John 1:10-11
If anyone comes to you [i.e., to your meetings] who does not bring this teaching [about Christ], you should not welcome him into your home or give him [any] greetings [i.e., suggesting approval or endorsement].
Revelation 2:2
I know about your deeds, your hard work and your perseverance. [I know] that you cannot tolerate wicked men and that you have tested those who call themselves apostles, but really are not, and found them to be liars.
Revelation 2:6
But you have this [in your favor]: You hate the [evil] deeds of the Nicolaitans, which I also hate [Note: These people were probably followers of someone named Nicolas and were known to be false teachers. See verse 15].
Revelation 2:14-16
"But I have a few things against you because you have people there [in the church] who hold to the teaching of Balaam, who taught Balak to place a stumblingblock in front of the Israelites, [causing them] to eat food sacrificed to idols and to be sexually immoral [See Num. 23-24].
Revelation 2:20
But I have this against you, that you tolerate that woman [named] Jezebel, who calls herself a prophetess. She teaches and deceives my servants into [practicing] sexual immorality and into eating things sacrificed to idols.
Revelation 22:15
On the outside [of the city] are the dogs [Note: This probably refers to people who practiced sexual perversions. See Deut. 23:17] and the sorcerers, and the sexually immoral people, and the murderers, and the idolaters and every person who loves and practices falsehood.