Why is the crucifixion of Jesus essential for salvation?

The crucifixion of Jesus is central to the Reformed understanding of salvation. As stated in Acts 2:23, He was 'delivered by the determinate counsel and foreknowledge of God,' showing that His death was God's divine plan. It emphasizes that this sacrifice was necessary because sin entered the world, necessitating atonement for it to be removed. Without the crucifixion, humanity remains in its sin, separated from God. The Apostle Peter illustrates that our guilt for sin is what necessitated Christ's sacrificial death; 'Ye have taken, and by wicked hands have crucified and slain.' Acknowledging the crucifixion leads believers to repentance and faith in Christ for true salvation—understanding that He bore the penalty for our sins.