How do we know substitution is true in Christian doctrine?
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Substitution is affirmed through Scripture and the fulfillment of prophecies concerning Christ's sacrifice for sin.
The truth of substitution is foundational in Christian theology and is deeply rooted in the Scriptures. Throughout the Old Testament, types and shadows point to the coming of an eternal substitute. Scriptures like Isaiah 53 illustrate the suffering servant, who bears our iniquities. In the New Testament, this doctrine is substantiated through passages that declare Christ's sacrifice as once for all (Hebrews 9:12) and affirm His role as our substitute and Redeemer. The effectiveness of His atonement, found in verses such as Romans 3:25, indicates that He didn't merely make an offer of salvation but secured it for His people.
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