Why is Christ's crucifixion important for salvation?

The crucifixion of Christ is pivotal in sovereign grace theology as it embodies the fulfillment of God's justice through the substitutionary atonement. As noted in John 3:14-15, the Son of Man must be lifted up to bear the sins of His people. The significance of His death is that it allows believers to escape eternal judgment and receive everlasting life. Hence, Christ’s crucifixion is not merely an event but the central act of God's redemptive plan, showcasing His unwavering love and justice.