Rom 3:24

“Redemption is the word used for what is given to enemies in order to ransom captives and restore them to their liberty. Therefore human beings were held in captivity by their enemies until the coming of the Son of God, who became for us not only the wisdom of God, and righteousness and sanctification, but also redemption. He gave himself as our redemption, that is, he surrendered himself to our enemies and poured out his blood on those who were thirsting for it. In this way redemption was obtained for believers.”

“"Being justified freely by His grace through the redemption that is in Christ Jesus: Whom God hath set forth to be a propitiation through faith in His blood, to declare His righteousness." See by how many proofs he makes good what was said. First, from the worthiness of the person, for it is not a man who doeth these things, that He should be too weak for it, but God all-powerful. For it is to God, he says, that the righteousness belongs. Again, from the Law and the Prophets. For you need not be afraid at hearing the "without the Law," inasmuch as the Law itself approves this. Thirdly, from the sacrifices under the old dispensation. For it was on this ground that he said, "In His blood," to call to their minds those sheep and calves. For if the sacrifices of things without reason, he means, cleared from sin, much more would this blood. And he does not say barely "redemption," but "entire redemption," to show that we should come no more into such slavery. And for this same reason he calls it a propitiation, to show that if the type had such force, much more would the reality display the same. But to show again that it was no novel thing or recent, he says, "fore-ordained;" and by saying God "fore-ordained," and showing that the good deed is the Father's, he showeth it to be the Son's also. For the Father "fore-ordained," but Christ in His own blood wrought the whole aright.”

“We have been justified without the works of the law, through baptism. In this way God has freely forgiven our sins even though we are undeserving. Christ has redeemed us with the blood of his death.… For we were all condemned to death, to which Christ handed himself over, though he had no need to, in order to redeem us by his blood.… Note also that Christ did not merely buy us but bought us "back," because we were once his by nature, even though we were separated from him by our sins. If we stop sinning, our redemption will indeed be profitable for us.”

“Since from the beginning Christ was most holy, he could not advance in holiness for himself. He merited, however, for us, who by his merit are justified through grace, advance in justice, and are crowned with eternal glory. And through this, all our merits are rooted in the merit of Christ, whether satisfactory for punishment or meritorious of eternal life, because we are worthy neither to be absolved from offense against the highest good, nor to gain the immensity of the eternal reward, which is God, except through the merit of the God-man.”

“Consequently, because all have sinned and cannot of themselves be justified, they need some other cause to make them just. This cause he indicates when he continues, being justified. First, he shows that such justification exists without the law, i.e., that it does not come from the works of the law, when he says being justified freely, i.e., without the merit of previous works: you were sold for nothing and you shall be redeemed without money (Isa 52:3). And this is by his grace, namely, God's, to whom glory is due on this account: by the grace of God I am what I am (1 Cor 15:10). Second, he shows what is the cause of justification. First, he discloses the cause itself, when he says, through the redemption. For as it is said: everyone who commits sin is a slave of sin (John 8:34). From this slavery a man is redeemed, if he makes satisfaction for sin. For example, if a man owes a king a fine for some guilty action, the one who paid the fine would be said to have redeemed him from the debt. Now, this debt involved the whole human race, which was infected by the sin of the first parent. Hence no other person could satisfy for the sin of the entire human race except Christ alone, who was immune from all sin. Hence he adds, that is in Christ Jesus. As if to say: in no other could there be redemption: not with perishable things, such as silver and gold (1 Pet 1:18).”

“They are justified freely because they have not done anything nor given anything in return, but by faith alone they have been made holy by the gift of God. Paul testifies that the grace of God is in Christ, because we have been redeemed by Christ according to the will of God so that once set free we may be justified, as he says to the Galatians: "Christ redeemed us by offering himself for us." For he achieved this despite the fierce attacks of the devil, who was outwitted. For the devil received Christ (in hell) thinking that he could hold him there, but because he could not withstand his power he lost not only Christ but all those whom he held at the same time.”