But then care must be taken, lest out of this freedom there grow a lazy indifference about killing the wantonness of the flesh; for the roguish Adam is exceedingly tricky in looking for permission for himself, and in pleading the ruin of the body or of the mind; so some men jump right in and say it is neither necessary nor commanded to fast or to mortify the flesh, and are ready to eat this and that without fear, just as if they had for a long time had much experience of fasting, although they have never tried it. No less are we to guard against offending those who, not sufficiently informed, regard it a great sin if we do not fast or eat as they do. These we must kindly instruct, and not haughtily despise, nor eat this or that in despite of them, but we must tell them the reason why it is right to do so, and thus gradually lead them to a correct understanding. But if they are stubborn and will not listen, we must let them alone, and do as we know it is right to do. XXII. The second form of discipline which we receive at the hands of others, is when men or devils cause us suffering, as when our property is taken, our body sick, and our honor taken away; and everything that may move us to anger, impatience and unrest. For God's work rules in us according to His wisdom, not according to our wisdom, according to His purity and chastity, not according to the wantonness of our flesh; for God's work is wisdom and purity, our work is foolishness and impurity, and these shall rest: so in like manner it should rule in us according to His peace, not our anger, impatience and lack of peace. For peace too is God's work, impatience is the work of our flesh; this shall rest and be dead, that we thus in every way keep a spiritual holiday, let our works stand idle, and let God work in us. Therefore in order to kill our works and the Adam in us, God heaps many temptations upon us, which move us to anger, many sufferings, which rouse us to impatience, and last of all death and the world's abuse; whereby He seeks nothing else than that He may drive out anger, impatience and lack of peace, and attain to His work, that is, to peace, in us. Thus says Isaiah xxviii, "He does the work of another that He may come to His own work." What does this mean? He sends us suffering and trouble that He may teach us to have patience and peace; He bids us die that He may make us live, until a man, thoroughly trained, becomes so peaceful and quiet that he is not disturbed, whether it go well or ill with him, whether he die or live, be honored or dishonored. There God Himself dwells alone, and there are no works of men. This is rightly keeping and hallowing the day of rest; then a man does not guide himself, then he desires nothing for himself, then nothing troubles him; but God Himself leads him, there is naught but godly pleasure, joy and peace with all other works and virtues.