How do we know that good works can't save us?

The distinction between good works and salvation is central to Reformed theology, as emphasized in Ephesians 2:8-9, which clearly states that we are saved by grace through faith, and not by works, lest anyone should boast. Good works are an essential response to God’s grace in our lives and serve as evidence of true faith, but they do not contribute to our justification before God. In Matthew 7:21-23, Jesus warns that many will present their works but will be rejected because their relationship with Him was never genuine. Salvation is rooted in Christ’s finished work rather than our own efforts, and understanding this liberates us from the burden of performance-based acceptance.