Heresy: The Propagation of, Forbidden Under Severe Penalties

If a prophet or dreamer of dreams arises among you and proclaims a sign or wonder to you,

Reject a divisive man after a first and second admonition,

…knowing that such a man is corrupt and sinful; he is self-condemned.

If anyone comes to you but does not bring this teaching, do not receive him into your home or even greet him.

Whoever greets such a person shares in his evil deeds.