How do we know that Christ's sacrifice for sin is true?

The truth of Christ's sacrifice is affirmed through the consistent testimony of Scripture and the prophetic fulfillments woven throughout the Old and New Testaments. The crucifixion is not merely an event but a fulfillment of promises made by God, showcased in passages such as Isaiah 53, which foretold the suffering Messiah who bore our transgressions. Furthermore, the New Testament writers reinforce this truth, indicating that Christ's death was the divinely orchestrated plan for redemption. Without the resurrection, the crucifixion would hold no power; however, Christ's victory over death assures us that His sacrifice was indeed efficacious.