How do we know that good works do not save us?

The assertion that good works do not save us is anchored in the biblical truth that our salvation comes solely through faith in Jesus Christ, not by our own efforts or righteousness. Ephesians 2:8-9 states, 'For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: Not of works, lest any man should boast.' While good works are essential as a response to salvation, they do not contribute to it. True salvation produces a desire for good works, which arise from a heart transformed by grace.