Titus 3:10
If a man is causing divisions among you, after warning him once or twice, have nothing more to say to him.
Romans 16:17
I urge you, Brothers, to be on your guard against people who, by disregarding the teaching which you received, cause divisions and create difficulties; dissociate yourselves from them.
2 John 1:10
If any one comes to you and does not bring this Teaching, do not receive him into your house or welcome him;
Matthew 18:15-17
If your Brother does wrong, go to him and convince him of his fault when you and he are alone. If he listens to you, you have won your Brother.
1 Corinthians 5:4-13
I have decided-having been present in spirit at your meetings, when the power of the Lord Jesus was with us-
1 Corinthians 11:19
Indeed, there must be actual parties among you, for so only will the men of real worth become known.
2 Corinthians 13:2
I have said it, and I say it again before I come, just as if I were with you on my second visit, though for the moment absent, I say to those who have been long sinning, as well as to all others--that if I come again, I shall spare no one.
Galatians 5:12
I could even wish that the people who are unsettling you would go further still and mutilate themselves.
Galatians 5:20
Idolatry, sorcery, quarrels, strife, jealousy, outbursts of passion, rivalries, dissensions, divisions,
2 Thessalonians 3:6
We urge you, Brothers, in the name of the Lord Jesus Christ, to avoid any Brother who is living an ill-ordered life, which is not in agreement with the teaching that you received from us.
2 Thessalonians 3:14
If any one disregards what we have said in this letter, mark that man and avoid his company, that he may feel ashamed.
2 Timothy 3:5
and while they retain the outward form of religion, they will not allow it to influence them. Turn your back on such men as these.
2 Peter 2:1
But there were false prophets also in the nation, just as there will be false teachers among you, men who will secretly introduce ruinous divisions, disowning even the Lord who bought them, and bringing speedy Ruin upon themselves.