The best and theologically most convincing reply to the objection of which he spoke: “Well and good, then I shall sin lustily,” etc. would have been: No, a good moral life is essential for salvation! The strongest Bible texts would have been there to back such a statement, and, to his powerful eloquence, it should have proved an attractive task to crush his frivolous opponents by so weighty an argument. Yet we find never a word concerning the necessity of good works for salvation, but merely an account of the wonders worked by faith of its own accord alone _after_ it has laid hold on the heart. This is readily understood, if justification is purely passive and effected solely by the Spirit of God which enkindles faith and, with it, covers over sin as with a shield, then the very being of the life of faith must be mere passivity, and there can be no more question of attaining to salvation by means of good deeds performed with the aid of grace. In the instruction for Melanchthon mentioned above we find at the end this clear query: “Is this saying true: Righteousness by works is necessary for salvation?” Luther answers by a distinction: “Not as if works operate or bring about salvation,” he says, “but rather they are present together with the faith that operates righteousness; just as of necessity I must be present in order to be saved.” This distinction, however, leaves the question just where it was before. He concludes his remarks on this vital matter with a jest on the purely external and fortuitous presence of works in the man received into eternal life: “I too shall be in at the death, said the rascal when he was about to be hanged and many people were hurrying to see the scene.”[134] All the more strongly did Luther in his usual way describe in his last sermon the natural sinfulness which persists in man owing to original sin.