IX. But you ask, "How does baptism help me, if it does not altogether blot out and put away sin?" This is the place for the right understanding of the sacrament of baptism. The holy sacrament of baptism helps you, because in it God allies Himself with you, and becomes one with you in a gracious covenant of comfort.
[Sidenote: Man's Pledge]
First of all, you give yourself up to the sacrament of baptism and what it signifies, i. e., you desire to die, together with your sins, and to be made new at the Last Day, as the sacrament declares, and as has been said.[6] This God accepts at your hands, and grants you baptism, and from that hour begins to make you a new man, pours into you His grace and Holy Spirit, Who begins to slay nature and sin, and to prepare you for death and the resurrection at the Last Day.
Again, you pledge yourself to continue in this, and more and more to slay your sin as long as you live, even until your death. This too God accepts, and trains and tries you all your life long, with many good works and manifold sufferings; whereby He effects what you in baptism have desired, viz., that you may become free from sin, may die and rise again at the Last Day, and so fulfil your baptism. Therefore, we read and see how bitterly He has let His saints be tortured, and how much He has let them suffer, to the end that they might be quickly slain, might fulfil their baptism, die and be made new. For when this does not happen, and we suffer not and are not tried, then the evil nature overcomes a man, so that he makes his baptism of none effect, falls into sin, and remains the same old man as before.
[Sidenote: God's Pledge]
X. So long, now, as you keep your pledge to God, He, in turn, gives you His grace, and pledges Himself not to count against you the sins which remain in your nature after baptism, and not to regard them or to condemn you because of them. He is satisfied and well-pleased if you are constantly striving and desiring to slay these sins and to be rid of them by your death. For this cause, although the evil thoughts and appetites may be at work, nay, even although you may sin and fall at times, these sins are already done away by the power of the sacrament and covenant, if only you rise again and enter into the covenant, as St. Paul says in Romans viii. No one who believes in Christ is condemned by the evil, sinful inclination of his nature, if only he does not follow it and consent to it; [Rom. 8:1] and St. John, in his Epistle, writes, "If any man sin, we have an Advocate with God, even Jesus Christ, Who has become the forgiveness of our sins." [1 John 2:2 f.] All this takes place in baptism, where Christ is given us, as we shall hear in the remainder of the treatise.
[Sidenote: The Comfort of the Covenant]
XI. Now if this covenant did not exist, and God were not so merciful as to wink at our sins, there could be no sin so so small but it would condemn us. For the judgment of God can endure no sin. Therefore there is on earth no greater comfort than baptism, for through it we come under the judgment of grace and mercy, which does not condemn our sins, but drives them out by many trials. There is a fine sentence of St. Augustine, which says, "Sin is altogether forgiven in baptism; not in such wise that it is no longer present, but in such wise that it is not taken into account." As though he were to say, "Sin remains in our flesh even until death, and works without ceasing; but so long as we do not consent thereto or remain therein, it is so overruled by our baptism that it does not condemn us and is not harmful to us, but is daily more and more destroyed until our death."
For this reason no one should be terrified if he feel evil lust or love, nor should he despair even if he fall, but he should remember his baptism, and comfort himself joyfully with it, since God has there bound Himself to slay his sin for him, and not to count it a cause for condemnation, if only he does not consent to sin or remain in sin. Moreover, these wild thoughts and appetites, and even a fall into sin, should not be regarded as an occasion for despair, but rather as a warning from God that man should remember his baptism and what was there spoken, that he should call upon God's mercy, and exercise himself in striving against sin, that he should even be desirous of death in order that he may be rid of sin.
[Sidenote: The Office of Faith]