Why is understanding substitutionary atonement important?

The concept of substitutionary atonement is central to the Gospel message, as it reveals that Christ took upon Himself the judgment we deserved for our sins. The preacher pointed out that God, being just, cannot overlook sin; hence, He punishes it. However, by sending His Son to die in our place, God provided a means by which the unjust could be justified. This not only satisfies God's justice but also reflects His mercy. Understanding this doctrine ensures that believers recognize the depth of Christ's sacrifice and the grace extended to them, affirming their assurance of salvation through faith in Him alone.