And of him are you in Christ Jesus, who of God is made unto us wisdom, and righteousness, and sanctification, and redemption:
All Commentaries on 1 Corinthians 1:30 Go To 1 Corinthians 1
Christ did what he did in order to strengthen believers, for no one can redeem something which did not originally belong to him. Therefore, whether it is because we have been redeemed, or because we have been sanctified (i.e., purged from the works of the flesh and the filthiness of idols), or because we have been justified (for it is just to worship only the Creator and spurn everything else) or because we are wise, having learned that worldly people are unwise—all this is a gift of God through Christ. But this is our redemption— when the devil desires it, Christ offers himself to the devil so that he may cancel sin and rescue the devil’s captives. Commentary on Paul’s Epistles.