5 Bible Verses about Heresy

I have known thy works, and thy labour, and thy endurance, and that thou art not able to bear evil ones, and that thou hast tried those saying themselves to be apostles and are not, and hast found them liars,

seeing we have heard that certain having gone forth from us did trouble you with words, subverting your souls, saying to be circumcised and to keep the law, to whom we did give no charge,

that is not another, except there be certain who are troubling you, and wishing to pervert the good news of the Christ;

for if, indeed, he who is coming doth preach another Jesus whom we did not preach, or another Spirit ye receive which ye did not receive, or other good news which ye did not accept -- well were ye bearing it,

and that because of the false brethren brought in unawares, who did come in privily to spy out our liberty that we have in Christ Jesus, that us they might bring under bondage,

A sectarian man, after a first and second admonition be rejecting, having known that he hath been subverted who is such, and doth sin, being self-condemned.

if any one doth come unto you, and this teaching doth not bear, receive him not into the house, and say not to him, 'Hail!' for he who is saying to him, 'Hail,' hath fellowship with his evil works.

and having brought them to the magistrates, they said, 'These men do exceedingly trouble our city, being Jews; and they proclaim customs that are not lawful for us to receive nor to do, being Romans.'

many blows also having laid upon them, they cast them to prison, having given charge to the jailor to keep them safely,

nor are they able to prove against me the things concerning which they now accuse me. 'And I confess this to thee, that, according to the way that they call a sect, so serve I the God of the fathers, believing all things that in the law and the prophets have been written, having hope toward God, which they themselves also wait for, that there is about to be a rising again of the dead, both of righteous and unrighteous; read more.
and in this I do exercise myself, to have a conscience void of offence toward God and men always.

saying -- 'Against the law this one doth persuade men to worship God;'