Why is it significant that salvation is not based on human effort?

The doctrine that salvation is not based on human effort is crucial in Reformed theology as it highlights the total depravity of man and the sovereignty of God in salvation. Ephesians 2:8-9 clarifies, '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.' If salvation were hinged upon human works or decisions, it would undermine the grace of God and place the sinner in the role of a savior. Sovereign grace teaches that it is God who initiates, sustains, and completes the saving work in the life of the believer, affirming that it is through Christ alone and His righteousness that we are saved.