[Sidenote: Effect of such Preaching]
What man is there whose heart, hearing these things, will not rejoice to its very core, and in receiving such comfort grow tender so as to love Christ, as he never could be made to love by any laws or works? Who would have power to harm such a heart or to make it afraid? If the knowledge of sin for the fear of death break in upon it is ready to hope in the Lord; it does not grow afraid when it hears tidings of evil, nor is it disturbed until it shall look down upon its enemies [Psalm 112:7 f.]. For it believes that the righteousness of Christ is its own, and that its sin is not its own, but Christ's; and that all sin is swallowed up by the righteousness of Christ is, as has been said above, a necessary consequence of faith in Christ. So the heart learns to scoff at death and sin, and to say with the Apostle, "Where, O death, is thy victory? where, O death, is thy sting? The sting of death is sin, and the strength of sin is the law. But thanks be to God, which giveth us the victory through our Lord Jesus Christ." [1 Cor. 15:55 ff.] For death is swallowed up not only in the victory of Christ, but also by our victory, because through faith His victory has become ours, and in that faith we also are conquerors.
Let this suffice concerning the inward man, his liberty and its source, the righteousness of faith,[14] which needs neither laws nor good works, nay, is rather injured by them, if a man trusts that he is justified by them.
[Sidenote: The Outward Man]
Now let us turn to the second part, to the outward man. Here we shall answer all those who, misled by the word "faith" and by all that has been said, now say: "If faith does all things and is alone sufficient unto righteousness, why then are good works commanded? We will take our ease and do no works, and be content with faith." I answer, Not so, ye wicked men, not so. That would indeed be proper, if we were wholly inward and perfectly spiritual men; but such we shall be only at the last day, the day of the resurrection of the dead. As long as we live in the flesh we only begin and make some progress in that which shall be perfected in the future life. For this reason the Apostle, in Romans viii, calls all that we attain in this he "the first fruits" of the spirit [Rom. 8:23], because, forsooth, we shall receive the greater portion, even the fulness of the spirit, in the future. This is the place for that which was said above, that a Christian man is the servant of all and made subject to all. For in so far as he is free he does no works, but in so far as he is a servant he does all manner of works. How this is possible, we shall see.
[Sidenote: Needs to do Works]
Although, as I have said, a man is abundantly justified by faith inwardly, in his spirit, and so has all that he ought to have, except in so far as this faith and riches must grow from day to day even unto the future he: yet he remains in this mortal life on earth, and in this life he must needs govern his own body and have dealings with men. Here the works begin; here a man cannot take his ease; here he must, indeed, take care to discipline his body by fastings, watchings, labors and other reasonable discipline, and to make it subject to the spirit so that it will obey and conform to the inward man and to faith, and not revolt against faith and hinder the inward man, as it is the body's nature to do if it be not held in check. For the inward man, who by faith is created in the likeness of God, is both joyful and happy because of Christ in Whom so many benefits are conferred upon him, and therefore it is his one occupation to serve God joyfully and for naught, in love that is not constrained.
While he is doing this, lo, he meets a contrary will in his own flesh, which strives to serve the world and to seek its own advantage. This the spirit of faith cannot tolerate, and with joyful zeal it attempts to put the body under and to hold it in check, as Paul says in Romans vii, "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" [Rom. 7:22 f.]; and, in another place, "I keep under my body, and bring it into subjection: lest by any means, when I have preached to others, I myself should be a castaway," [1 Cor. 9:27] and in Galatians, "They that are Christ's have crucified the flesh with its lusts." [Gal. 5:24]
[Sidenote: Works do not Justify]
In doing these works, however, we must not think that a man is justified before God by them: for that erroneous opinion faith, which alone is righteousness before God, cannot endure; but we must think that these works reduce the body to subjection and purity it of its evil lusts, and our whole purpose is to be directed only toward the driving out of lusts. For since by faith the soul is cleansed and made a lover of God, it desires that all things, and especially its own body, shall be as pure as itself, so that all things may join with it in loving and praising God. Hence a man cannot be idle, because the need of his body drives him and he is compelled to do many good works to reduce it to subjection. Nevertheless the works themselves do not justify him before God, but he does the works out of spontaneous love in obedience to God, and considers nothing except the approval of God, Whom he would in all things most scrupulously obey.