Weary as he is at the end of the lengthy work, he is still anxious to “tread under foot the Pope, as Psalm xci. [xc., verse 13] says: ‘Thou shalt walk upon the asp and the basilisk, and shalt trample under foot the lion and the dragon’; this we will do with the help and strength of the Seed of the woman that has crushed and still crushes the serpent’s head, albeit we know that he will turn and bite our heel. To the same blessed Seed of the woman be all praise and glory together with the Father and the Holy Ghost, One True God and Lord for ever and ever. Amen.” Here, in the few pages we have selected for quotation, the whole psychological Luther-problem unrolls itself. In the pictures his imagination conjures up, the sacrifice of the Mass—the most sacred mystery of Catholic worship—occupies a special place. It is the idolatrous abomination foretold by the prophet, or rather the idol Moasim itself (above, vol. iv., p. 524). One wonders whether he really succeeded in persuading himself that his greatest sin, a sin that cried to heaven for vengeance and deserved eternal damnation (above, p. 136; cp. vol. iv., p. 509), was his having—as a monk and at a time when he knew no better—celebrated the sacrifice of the Mass? It is true that, in the solemn profession he makes of his belief in the Sacrament (1528), when resolved to confess his faith “before God and the whole world,” he says: “These were my greatest sins, that I was such a holy monk and for over fifteen years angered, plagued and martyred my dear Master so gruesomely by my many Masses.” The words occur at the close of his “Vom Abendmal Christi Bekentnis,” with the asseveration, that he would stand firm in this faith to the very end; “and were I, which God forbid, under stress of temptation or in the hour of death to say otherwise, then [what I might say] must be accounted as nought and I hereby openly proclaim it to be false and to come from the devil. So help me My Lord and Saviour Jesus Christ Who is blessed for ever and ever. Amen.”[507] According to what he once remarked in 1531 (above, p. 136 f.) it was, however, not the devil who was prompting him to despair by calling up his crying sin of having said Mass. If Luther is indeed telling the truth, and if his doings as a zealous monk really seemed to him to be his worse sins, then we can only marvel at his confusion of mind having gone so far. From other admissions we should rather gather that what disquieted his conscience was more the subversion of the olden worship, the ruin of the religious life and, in fact, the whole working of the innovations. And yet, here, we have a solemn assurance that the very contrary was the case. It is in itself a problem how he contrives to make such frightful sins of his monastic life—into which, on his own showing, he had entered in ignorance—and of the Masses which he had said all unaware of their wickedness.