How do we know Christ's death accomplishes our salvation?

The key to understanding the significance of Christ's death lies in its intended purpose: to save His people from their sins. Scripture makes it clear that Christ's death is not merely a symbolic act, but rather the fulfillment of God's plan to redeem humanity. In Galatians 2:21, Paul asserts, 'If righteousness comes by the law, then Christ is dead in vain,' which highlights the futility of self-righteousness and reinforces that our salvation relies solely on Christ's atoning work. His broken body and shed blood were necessary to pay the penalty of our sins, demonstrating that salvation is entirely a gift of grace and not of human effort.