How do we know redemption is achieved through Christ?

The doctrine of redemption through Christ is central to Christian faith, emphasized in the scriptural narrative of His sacrificial death. Hebrews 10:12 highlights that Jesus made one sacrifice for sins, thereby completing the work of atonement. This fulfillment is shown in the final words of Christ on the cross, signifying that the required payment for sin was fully accomplished. Moreover, Isaiah's prophecies regarding the Messiah's coming illustrate God's plan to provide salvation for His people, affirming that through Christ's atoning work, believers are redeemed and restored to fellowship with God. Understanding redemption must lead to a holy gratitude towards Christ, who bore our sins and errors.