How do we know that Jesus was made sin for us?

In 2 Corinthians 5:21, it is clearly articulated that Jesus Christ was made sin for us, conveying that He bore the penalty and the very nature of sin in His sacrificial death. This is critical to the gospel message, as it underscores that our sins were not merely imputed to Him in a figurative sense; rather, He became sin itself, allowing us to be made the righteousness of God in Him. This doctrine is pivotal in understanding how Christ took our place, suffering the wages of sin, which is death, and thus satisfying divine justice while providing us a path to redemption and life in Him. This truth is not found elsewhere—it is a unique declaration of Scripture that reveals the depth of Christ's atoning work.