Titus 3:10
An heretic after a first and second admonition reject,
Romans 16:17
Now I beseech you, brethren, mark them who cause divisions and offences, contrary to the doctrine which ye have learned, and avoid them.
2 John 1:10
he that abideth in the doctrine of Christ, he hath both the Father and the Son. If any come to you, and bring not this doctrine,
Matthew 18:15-17
But if thy brother shall sin against thee, go and tell him his fault, between thee and him alone: if he will hear thee, thou hast gained thy brother.
1 Corinthians 5:4-13
as if I were present, judged him who hath so done this, In the name of our Lord Jesus Christ, when ye are gathered together, and my spirit,
1 Corinthians 11:19
For there must be heresies also among you, that the approved among you may be manifest).
2 Corinthians 13:2
I told you before, and do tell before-hand (though now absent, as if I were present the second time) those who had sinned before, and all the rest, that, if I come again, I will not spare:
Galatians 5:12
Then is the offence of the cross ceased. I would they were even cut off that trouble you.
Galatians 5:20
uncleanness, lasciviousness, Idolatry, witchcraft, enmities, contentions,
2 Thessalonians 3:6
Now we command you, brethren, in the name of our Lord Jesus Christ, to withdraw yourselves from every brother that walketh disorderly and not according to the tradition which he received of us.
2 Thessalonians 3:14
And if any man obey 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 the power of it.
2 Peter 2:1
But there were false prophets also among the people, as there shall likewise be false teachers among you, who will privily bring in destructive heresies, even denying the Lord that bought them, and bring upon themselves swift destruction.