His private, non-polemical religious exercises seem to have been exceedingly brief: “I have to do violence to myself daily in order to pray, and I am satisfied to repeat, when I go to bed, the Ten Commandments, the Our Father and then a verse or two; while thinking these over I fall asleep.”[636] Unusual, and at the same time peculiar, were the prayers which we hear of his offering with the intention of doing some wholesome ill to his neighbour, or even of bringing about the latter’s death in the interests of the Evangel. In a sermon on July 23, 1531, after reprimanding certain Wittenberg brewers, who, in the hope of adding to their profits, were accustomed to adulterate their beer, he says: “Unless you mend your ways, we shall pray that your malt may turn to muck and sewage. Don’t forget that.”[637] * * * * * The Christian’s life of faith ought not merely to be penetrated with the spirit of prayer but, in spite of all crosses and the temptations from earthy things, to move along the safe path of peace and joy of heart. Luther must have found much concerning “peace and joy in the Holy Ghost” in his favourite Epistle to the Romans. He himself says: “A Christian must be a joyful man.... Christ says, ‘Peace be with you; let not your heart be troubled: have confidence, I have overcome the world.’ It is the will of God that you be joyful.” Of himself, however, he is forced to add: “I preach and write this, but I have not yet acquired the art when tempted the other way. This is in order that we may be instructed,” so he reassures himself. “Were we always at peace, the devil would get the better of us.... The fact is we are not equal to the holy Fathers in the matter of faith. The further we fall short of them [this is another of his consolations], the greater is the victory Christ will win; for in the struggle with the devil we are the meanest, most stupid of foes, and he has a great advantage over us.... Our Lord has determined to bring about the end [the impending end of all] amidst universal foolishness.”[638] Thus, according to him, the victory of Christ would be exalted all the more by the absence of peace and joy amongst His followers. What do we see of pious effort on his part, more particularly in the matter of preparation for the sacraments, and repressing of self? The spiritual life was to him a passive compliance with the faith which God Himself was to awaken and preserve in the heart.