Why is faith in Christ alone emphasized in sovereign grace theology?

Sovereign grace theology asserts that salvation is by grace alone through faith alone in Christ alone. This principle underscores man's total depravity, affirming that no human effort can contribute to their salvation. Faith in Christ is presented as the only vehicle through which individuals can receive the righteousness of God. Through faith, believers are declared justified, receiving eternal life as a gift from God. This reliance on Christ diminishes human pride and elevates God’s sovereignty in the work of salvation, ensuring that all glory goes to Him and that believers rest wholly on His finished work.