Nicene and Post-Nicene Fathers: Series I/Volume V/On Marriage and Concupiscence/Book I/Chapter 36

Chapter 36.—Even Now While We Still Have Concupiscence We May Be Safe in Christ.

But the apostle pursues the subject, and says, “So then with the mind I myself serve the law of God, but with the flesh the law of sin;” which must be thus understood: “With my mind I serve the law of God,” by refusing my consent to the law of sin; “with my flesh, however,” I serve “the law of sin,” by having the desires of sin, from which I am not yet entirely freed, although I yield them no assent. Then let us observe carefully what he has said after all the above: “There is therefore now no condemnation to them which are in Christ Jesus.” Even  now, says he, when the law in my members keeps up its warfare against the law of my mind, and retains in captivity somewhat in the body of this death, there is no condemnation to them which are in Christ Jesus. And listen why: “For the law of the spirit of life in Christ Jesus,” says he, “hath made me free from the law of sin and death.” How made me free, except by abolishing its sentence of guilt by the remission of all my sins; so that, though it still remains, only daily lessening more and more, it is nevertheless not imputed to me as sin?