But there were also false prophets among the people, just as there will be false teachers among you. They will secretly bring in destructive heresies, even denying the Master who bought them, and will bring swift destruction on themselves.
References for 2 Peter 2:1
Many will follow their unrestrained ways, and because of them the way of truth will be blasphemed.
In their greed they will exploit you with deceptive words. Their condemnation, [pronounced] long ago, is not idle, and their destruction does not sleep.