Therefore, when Isaiah, 1, 16. 18, preaches repentance: Cease to do evil; learn to do well; seek judgment, relieve the oppressed, judge the fatherless, plead for the widow. Come now and let us reason together, saith the Lord; though your sine be as scarlet, they shall be white as snow, the prophet thus both exhorts to repentance, and adds the promise. But it would be foolish to consider in such a sentence only the words: Relieve the oppressed; judge the fatherless. For he says in the beginning: Cease to do evil, where he censures impiety of heart and requires faith. Neither does the prophet say that through the works: Relieve the oppressed, judge the fatherless, they can merit the remission of sins _ex opere operato_, but he commands such works as are necessary in the new life. Yet, in the mean time, he means that remission of sins is received by faith, and accordingly the promise is added. Thus we must understand all similar passages. Christ preaches repentance when He says: Forgive, and He adds the promise: And ye shall be forgiven, Luke 6, 37. Nor, indeed, does He say this, namely, that, when we forgive, by this work of ours we merit the remission of sins _ex opere operato_, as they term it, but He requires a new life, which certainly is necessary. Yet, in the mean time He means that remission of sins is received by faith. Thus, when Isaiah says, 58, 7: Deal thy bread to the hungry, he requires a new life. Nor does the prophet speak of this work alone, but, as the text indicates, of the entire repentance; yet, in the mean time, he intends that remission of sins is received by faith. For the position is sure, and none of the gates of hell can overthrow it, that in the preaching of repentance the preaching of the Law is not sufficient, because the Law works wrath and always accuses. But the preaching of the Gospel should be added, namely, that in this way remission of sins is granted us, if we believe that sins are remitted us for Christ's sake. Otherwise, why would there be need of the Gospel, why would there be need of Christ? This belief ought always to be in view, in order that it may be opposed to those who, Christ being cast aside and the Gospel being blotted out, wickedly distort the Scriptures to the human opinions, that by our works we purchase remission of sins.