2 Peter 2:3, 15-16

They are only out for themselves, ready to exploit you for their own gain through their cunning arguments. Their condemnation has been a long time coming. But their destruction does not slumber or sit idly by, for it is sure to come.

They have wandered off the main road and have gone astray, because they are prophets who love profit—the wages they earn by wrongdoing. They are following the example of Balaam, son of Beor, who was rebuked for evil by a donkey incapable of speech yet that spoke with a human voice and restrained the prophet’s madness.