Theme: Five metaphors from the created realm are used to describe the character—and ultimate judgment—of false teachers in the church.

Theme: The three-fold nature of apostasy is illustrated from the Old Testament stories of Cain, Balaam and Korah.

Theme: Apostasy shows itself in its arrogant tendency to speak irreverently of spiritual realities.

Theme: The believer is exhorted to contend earnestly for the faith once delivered to the saints.