Dear friends, this is now my second letter to you. I have written both of them as reminders to stimulate you to wholesome thinking. I want you to recall the words spoken in the past by the holy prophets and the command given by our Lord and Savior through your apostles. They secretly introduce their destructive heresies. Jude indicates that these false prophets are grumblers and faultfinders who follow their own evil desires as they boast about themselves and flatter others for their own advantage.
False prophets seek to exploit people through stories they have made up.
The way we think directly affects the way we live. Peter warns against following their shameful ways. This is especially true of those who follow the corrupt desire of the sinful nature and despise authority. But these men blaspheme in matters they do not understand. They are like brute beasts, creatures of instinct, born only to be caught and destroyed, and like beasts they too will perish.