What are damnable heresies?

Damnable heresies, as articulated in 2 Peter, refer to doctrines that fundamentally oppose the complete work of Christ in redemption. These teachings are not just misguided but are noted for their dangerous allure, as they subtly encourage followers to trust in themselves rather than in the sufficient grace found in Jesus. Examples include free will religion, universal redemption, and any notion that promotes salvation by works. Such teachings are harmful as they can lead individuals into idolatry, creating barriers to acceptance of the true gospel and promoting a false understanding of God's grace.