Titus 3:10
As for a person who stirs up division, after warning him once and then twice, have nothing more to do with him,
Romans 16:17
I appeal to you, brothers, to watch out for those who cause divisions and create obstacles contrary to the doctrine that you have been taught; avoid them.
2 John 1:10
If anyone comes to you and does not bring this teaching, do not receive him into your house or give him any greeting,
Matthew 18:15-17
"If your brother sins against you, go and tell him his fault, between you and him alone. If he listens to you, you have gained your brother.
1 Corinthians 5:4-13
When you are assembled in the name of the Lord Jesus and my spirit is present, with the power of our Lord Jesus,
1 Corinthians 11:19
for there must be factions among you in order that those who are genuine among you may be recognized.
2 Corinthians 13:2
I warned those who sinned before and all the others, and I warn them now while absent, as I did when present on my second visit, that if I come again I will not spare them--
Galatians 5:12
I wish those who unsettle you would emasculate themselves!
Galatians 5:20
idolatry, sorcery, enmity, strife, jealousy, fits of anger, rivalries, dissensions, divisions,
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
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.
2 Timothy 3:5
having the appearance of godliness, but denying its power. Avoid such people.
2 Peter 2:1
But false prophets also arose among the people, just as there will be false teachers among you, who will secretly bring in destructive heresies, even denying the Master who bought them, bringing upon themselves swift destruction.