It is not my object to discuss the truth or error of this fundamental doctrine. There are many who deny it, even among Protestants. I am not a controversialist, or a theologian: I am simply an historian. I wish to show what is historically true and clear; and I defy all the scholars and critics of the world to prove that this doctrine is not the basal pillar of the Reformation of Luther. I wish to make emphatic the statement that _justification by faith_ was, as an historical fact, the great primal idea of Luther; not new, but new to him and to his age. I have now to show how this idea led to others; how they became connected together; how they produced not only a spiritual movement, but political, moral, and intellectual forces, until all Europe was in a blaze. Thus far the agitation under Luther had been chiefly theological. It was not a movement against popes or institutions, it was not even the vehement denunciation against sin in high places, which inflamed the anger of the Pope against Savonarola. To some it doubtless seemed like the old controversy between Augustine and Pelagius, like the contentions between Dominican and Franciscan monks. But it was too important to escape the attention of even Leo X., although at first he gave it no thought. It was a dangerous agitation; it had become popular; there was no telling where it would end, or what it might not assail. It was deemed necessary to stop the mouth of this bold and intellectual Saxon theologian. So the voluptuous, infidel, elegant Pope--accomplished in manners and pagan arts and literature--sent one of the most learned men of the Church which called him Father, to argue with Doctor Luther, confute him, conquer him,--deeming this an easy task. But the doctor could not be silenced. His convictions were grounded on the rock; not on Peter, but on the rock from which Peter derived his name. All the papal legates and cardinals in the world could neither convince nor frighten him. He courted argument; he challenged the whole Church to refute him. Then the schools took up the controversy. All that was imposing in names, in authority, in traditions, in associations, was arrayed against him. They came down upon him with the whole array of scholastic learning. The great Goliath of controversy in that day was Doctor Eck, who challenged the Saxon monk to a public disputation at Leipsic. All Germany was interested. The question at issue stirred the nation to its very depths.