Book I · Chapter 32 — When Good Will Be Perfectly Done.

The apostle then adds these words: "For I know that in me (that is, in my flesh) dwelleth no good thing: for to will is present with me; but how to perfect that which is good I find not." Now this is said, because a good thing is not then perfected, when there is an absence of evil desires, as evil is perfected when evil desires are obeyed. But when they are present, but are not obeyed, neither evil is performed, since obedience is not yielded to them; nor good, because of their inoperative presence. There is rather an intermediate condition of things: good is effected in some degree, because the evil concupiscence has gained no assent to itself; and in some degree there is a remnant of evil, because the concupiscence is present. This accounts for the apostle's precise words. He does not say, To do good is not present to him, but "how to perfect it." For the truth is, one does a good deal of good when he does what the Scripture enjoins, "Go not after thy lusts;" yet he falls short of perfection, in that he fails to keep the great commandment, "Thou shalt not covet." The law said, "Thou shalt not covet," in order that, when we find ourselves lying in this diseased state, we might seek the medicine of Grace, and by that commandment know both in what direction our endeavours should aim as we advance in our present mortal condition, and to what a height it is possible to reach in the future immortality. For unless perfection could somewhere be attained, this commandment would never have been given to us.

Chapter 33 [XXX.]--True Freedom Comes with Willing Delight in God's Law.

The apostle then repeats his former statement, the more fully to recommend its purport: "For the good," says he, "that I would, I do not: but the evil which I would not, that I do. Now, if I do that I would not, it is no more I that do it, but sin that dwelleth in me." Then follows this: "I find then the law, when I would act, to be good to me; for evil is present with me." In other words, I find that the law is a good to me, when I wish to do what the law would have me do; inasmuch as it is not with the law itself (which says, "Thou shalt not covet") that evil is present; no, it is with myself that the evil is present, which I would not do, because I have the concupiscence even in my willingness. "For," he adds, "I delight in the law of God after the inward man; but I see another law in my members warring against the law of my mind, and bringing me into captivity to the law of sin which is in my members." This delight with the law of God after the inward man, comes to us from the mighty grace of God; for thereby is our inward man renewed day by day, because it is thereby that progress is made by us with perseverance. In it there is not the fear that has torment, but the love that cheers and gratifies. We are truly free there, where we have no unwilling joy.