Why is reliance on works dangerous for Christians?
Answered in 1 source
Reliance on works undermines the grace of God and leads to spiritual collapse, as human efforts cannot save.
When Christians lean on their own works for salvation, they risk falling away from the grace that is found in Christ alone. As noted in Amos 7, Israel's downfall was tied to their attempt to establish a righteousness of their own rather than accepting God's standard in Christ. This belief in self-righteousness is compared to a wall built with undried mortar, which cannot stand. True security and salvation depend on grace, not on our efforts. The righteousness that pleases God comes exclusively through faith in Christ, who is the true fulfillment of the law and the source of redemption.
Commentary