How do we know that Jesus is our substitute for sin?

The affirmation of Jesus as our substitute for sin is firmly established in Scriptural evidence, particularly in the prophetic declarations found in Isaiah 53:5, which foretells the suffering servant bearing our iniquities. Furthermore, in the New Testament, Christ's death is presented as fulfilling the requirements of the sacrificial system; He bore the sins of many, reflecting the necessity of blood for atonement. This understanding is foundational to the doctrine of grace, emphasizing that salvation is not based on our merit but solely on Christ’s redemptive work on the cross.