Titus 3:10
A man that is a heretic, after the first and second admonition, reject;
Romans 16:17
Now I beseech you, brethren, mark them who cause divisions and offenses, contrary to the doctrine which ye have learned; and avoid them.
2 John 1:10
If any one cometh to you, and bringeth not this doctrine, receive him not into your house, neither wish him happiness:
Matthew 18:15-17
Moreover, if thy brother shall trespass against thee, go and tell him his fault between thee and him alone: if he shall hear thee, thou hast gained thy brother.
1 Corinthians 5:4-13
In the name of our Lord Jesus Christ, when ye are assembled, and my spirit, with the power of our Lord Jesus Christ,
1 Corinthians 11:19
For there must be also heresies among you, that they who are approved may be made manifest among you.
2 Corinthians 13:2
I told you before, and foretell you, as if I were present, the second time; and being absent now I write to them who heretofore have sinned, and to all others, that, if I come again, I will not spare;
Galatians 5:12
I would they were even cut off who trouble you.
Galatians 5:20
Idolatry, witchcraft, hatred, variance, emulations, wrath, strife, seditions, heresies,
2 Thessalonians 3:6
Now we command you, brethren, in the name of our Lord Jesus Christ, that ye withdraw yourselves from every brother that walketh disorderly, and not after the tradition which he received from us.
2 Thessalonians 3:14
And if any man obeyeth not our word by this epistle, note that man, and have no company with him, that he may be ashamed.
2 Timothy 3:5
Having a form of godliness, but denying its power: from such turn away.
2 Peter 2:1
But there were false prophets also among the people, even as there will be false teachers among you, who will privately bring in damnable heresies, even denying the Lord that bought them, and bring upon themselves swift destruction.