II Corinthians 5:24 "For he hath made him to be sin for us, who knew no sin; that we might be made the righteousness of God in him."
What a grand declaration in the heart of a helpless sinner! That the Father has charged my guilt to his Son and has given me the righteousness of God in Christ. This is substitution-the innocent made to be the sin of the guilty and the guilty made to be the righteousness of the innocent. This is reconciliation-those once enemies of God made to be his dear children in their representative Christ Jesus. In order for this transaction to take place some important things had to happen. The substitute had to be flesh and blood like us. He had to be tempted in every way like us. As a man the representative had to be completely free of any guilt in thought or in deed-as righteous as God is. Christ met these requirements.
So then when Christ fulfilled all that the prophets had written of him, when he finished the work that God gave him to do upon this earth, he went to the cross. God took all the sin of all the elect from every generation and laid it upon Christ. God's vindicated his wrath upon every one of his people in the substitute. And not only did Christ justify them of their sins but he also freely gave them the righteousness of God, which he earned as a man on their behalf. None of them will be found guilty for God accepts them in his beloved Son. Not one of them will be lost for the precious blood of God's only begotten Son has bought them. Every one will cease from his corrupt works and rest completely on Christ Jesus who is seated at the right hand of the Father. And every one rejoices, ever thankful, amazed that Christ was made to be sin that we might be made the righteousness of God in him. There is no greater blessing!