Why did God make Christ become sin for us?
God made Christ, who knew no sin, to be sin for us so that we might be made the righteousness of God in Him. Through this exchange, God imputes Christ’s sinless perfection to believers by faith, and He no longer sees their sin but sees Christ’s righteousness.
Les explains that God made Christ, who knew no sin, to be sin for us so that we might be made the righteousness of God in Him. Christ was God and was sinless, never committing a single sin, not even in thought. God has imputed Christ's righteousness to our account. Now when God looks on believers, He does not see them by name; He sees Christ, because everything Christ was and is has been placed on them by faith. This should lead to testimony, concern for the lost, and reminding others that it is not what you do but faith—believing and appropriating it.