Titus 3:10
Reject a heretical man after the first and second admonition;
Romans 16:17
But I exhort you, brethren, to mark those who cause divisions and stumblings, contrary to the teaching which you have learned, and depart from them.
2 John 1:10
If any one comes to you, and does not bring this doctrine; do not receive him into your house, and do not bid him God speed:
Matthew 18:15-17
But if thy brother may sin, go, and convict him between thee and him alone: if he may hear thee, thou hast gained thy brother:
1 Corinthians 5:4-13
in the name of the Lord Jesus, you and my spirit being assembled, with the power of the Lord Jesus,
1 Corinthians 11:19
For it behooves that heresies should indeed be among you, in order that the approved may be made manifest among you.
2 Corinthians 13:2
I have told you beforehand, and I am speaking to you in advance, as being present the second time, even now absent, that, if I may come to you again, I will not spare those who have previously sinned, and all the rest;
Galatians 5:12
I would that those troubling you shall indeed cut themselves off.
Galatians 5:20
idolatry, sorcery, enmities, strife, jealousy, animosities, selfseekings, divisions, heresies,
2 Thessalonians 3:6
And we command you, brethren, in the name of our Lord Jesus Christ, that you withdraw from every brother who walks about disorderly, and not according to the teaching they received from us.
2 Thessalonians 3:14
But if any one does not obey our word through the epistle, note him; do not keep company with him; in order that he may be ashamed;
2 Timothy 3:5
having a form of godliness, but denying the power of the same: and from these turn away.
2 Peter 2:1
However there were indeed false prophets among the people, as there will also be false teachers among you, whosoever shall bring in destructive heresies, even denying the Lord who bought them, bringing on themselves swift destruction.