How do we know Christ's sacrificial atonement is true?

The assurance of Christ's sacrificial atonement rests on the consistent witness of Scripture, both in the Old and New Testaments. In Genesis 42:21, Joseph's brothers express guilt, mirroring the realization of sin that leads to Christ as the ultimate sacrifice. The prophetic texts, like Isaiah 53, detail the suffering servant who bears the sins of many, showcasing God's plan for redemption long before Christ's incarnation. In addition, New Testament affirmations, such as John 1:29, proclaim Jesus as 'the Lamb of God, who takes away the sin of the world.' The historical reality of His crucifixion, combined with the resurrection, validates the truth of the atoning work accomplished on the cross, as articulated in 1 Peter 2:24, which declares that 'he himself bore our sins in his body on the tree.' Therefore, Scripture substantiates the truth of Christ's redemptive sacrifice.