Amid the gloom that settled upon the earth during the long period of papal supremacy, the light of truth could not be wholly extinguished. In every age there were witnesses for God—men who cherished faith in Christ as the only mediator between God and man, who held the Bible as the only rule of life, and who hallowed the true Sabbath. How much the world owes to these men, posterity will never know. They were branded as heretics, their motives impugned, their characters maligned, their writings suppressed, misrepresented, or mutilated. Yet they stood firm, and from age to age maintained their faith in its purity, as a sacred heritage for the generations to come GC 61.1