This faith creates rest, satisfaction, and peace and dispels weariness. But where faith is lacking and man judges according to his own feelings, ideas, and perception, behold, weariness arises. Because he feels only his own misery and not that of his neighbor, he does not see his own privileges nor how unfortunate his neighbor is. The result of this unsatisfied feeling is aversion, trouble, and toil throughout life. He grows impatient and quarrels with God. God is not praised, and there is no love or gratitude to God…. He embitters his life, and hell is his reward. Here you see how faith is necessary in everything; how it makes all things, easy, good, and pleasant, even in prison or in death, as the martyrs prove. But without faith all things are difficult, bad and bitter, even if all the pleasures and joys of the whole world were yours, as is shown by all the mighty and the rich, who live the most miserable life all the time.
Martin Luther (Kirchenpostille)