Titus 3:10
An heretical man after a first and second admonition have done with,
Romans 16:17
But I beseech you, brethren, to consider those who create divisions and occasions of falling, contrary to the doctrine which ye have learnt, and turn away from them.
2 John 1:10
If any one come to you and bring not this doctrine, do not receive him into the house, and greet him not;
Matthew 18:15-17
But if thy brother sin against thee, go, reprove him between thee and him alone. If he hear thee, thou hast gained thy brother.
1 Corinthians 5:4-13
to deliver, in the name of our Lord Jesus Christ (ye and my spirit being gathered together, with the power of our Lord Jesus Christ), him that has so wrought this:
1 Corinthians 11:19
For there must also be sects among you, that the approved may become manifest among you.
2 Corinthians 13:2
I have declared beforehand, and I say beforehand as present the second time, and now absent, to those that have sinned before, and to all the rest, that if I come again I will not spare.
Galatians 5:12
I would that they would even cut themselves off who throw you into confusion.
Galatians 5:20
idolatry, sorcery, hatred, strifes, jealousies, angers, contentions, disputes, schools of opinion,
2 Thessalonians 3:6
Now we enjoin you, brethren, in the name of our Lord Jesus Christ, that ye withdraw from every brother walking disorderly and not according to the instruction which he received from us.
2 Thessalonians 3:14
But if any one obey not our word by the letter, mark that man, and do not keep company with him, that he may be ashamed of himself;
2 Timothy 3:5
having a form of piety but denying the power of it: and from these turn away.
2 Peter 2:1
But there were false prophets also among the people, as there shall be also among you false teachers, who shall bring in by the bye destructive heresies, and deny the master that bought them, bringing upon themselves swift destruction;