2 Peter 2:1

1Many years ago, there were false prophets among God's people. They did not speak God's true messages. In the same way, there will also be false teachers among you. They will come among you and they will teach you things that are not true. Their wrong ideas will deceive people. Those false teachers will even speak against the Master, who paid the price for their sins. As a result, they will bring trouble on themselves that quickly destroys them.