Luther persisted in his course of criticism. To Staupitz he wrote: "I see that attempts are made at Rome that the kingdom of truth, i.e., of Christ, be no longer the kingdom of truth." After the pope had issued his first brief condemning him, Luther exclaimed: "It is incredible that a thing so monstrous should come from the chief pontiff, especially Leo X. If in truth it be come forth from the Roman court, then I will show them their most licentious temerity and their ungodly ignorance." These were bold words from a man who did not wish to become a reformer, a revolutionist, or a heretic.

Now the pope regarded this whole affair as a quarrel of monks, and allowed Luther to give his side of the story. He was induced to send a certain cardinal legate, Cajetan, to Augsburg to bring this heretic into submission, but the legate failed to bring Luther into subjection. Luther then appealed to the pope, and when the pope issued a bull approving of the sale of indulgences, Luther appealed to the council.

Thus far Luther had only protested against the perversion of the rules of the church and of the papal doctrine, but there followed the public disputations with Doctor John Eck, the vice-chancellor of the University of Ingolstadt, in which the great subject under discussion was the primacy of the pope. Luther held that the pope was not infallible that he might err in matters of doctrine, and that the general council, which represented the universal church, should decide the case. Now Luther had already asserted that certain doctrines of Huss were true, but the Council of Constance had condemned these and burned Huss at the stake. Luther was compelled by his shrewd opponent to acknowledge that a council also might err, and he had then to maintain his position that the pope and the council both might err and to commit himself to the proposition that there is no absolute authority on the face of the earth to interpret the will of God. But now Luther was forced to go yet a step farther. When the papal bull condemning him and excommunicating him was issued, he took the bull and burned it in the presence of a concourse of people, and then wrote his address to the German nobles. He thus set at defiance the whole church government and authority. He had become an open revolutionist.

The Catholic Church, to defend itself from the position it had taken against Luther, reasoned in this way: "Where there is difference of opinion, there is doubt; where there is doubt, there is no certainty; where there is no certainty, there is no knowledge. Therefore, if Luther is right, that there is room for difference of opinion about divine revelation, then we have no knowledge of that revelation." In this way did the Roman Church attempt to suppress all freedom of religious belief.

For the opposition which Luther made, he was summoned to appear before the Diet of Augsburg, which condemned him as a heretic. Had it not been that Charles V, who presided, had promised him a safe-conduct to and from the diet, Luther would have suffered the same fate as John Huss. Indeed, it is said that Charles V, when near his death, regretted that he had not burned Luther at the stake. It shows how little the emperor knew of the real spiritual scope of the Reformation, that he hoped to stay its tide by the burning of one man.

The safe-conduct of Luther by Charles V was decided on account of the existing state of European politics. The policy followed by the emperor at the diet was not based upon the arguments which Luther so powerfully presented before the diet, but upon a preconceived policy. Had the Emperor of Germany been only King of Spain in seeking to keep the pretentious power of the pope within bounds he might have gained a great advantage by uniting with Luther in the Reformation. But as emperor he needed the support of the pope, on account of the danger of invasion of Italy by Francis I of France. He finally concluded it would be best to declare Luther a heretic, but he was impotent to enforce punishment by death. In this way he would set himself directly in opposition to the Reformation and save his crown. Apparently Charles cared less for the Reformation than he did for his own political preservation.[[6]]

From this time on the Reformation in Germany became wholly political. Its advantages and disadvantages hung largely upon the political intrigues and manipulations of the European powers. It furnished the means of an economic revolt, which Luther, having little sympathy with the common people in their political and social bondage, was called to suppress from the castle of Wartburg.

The Reformation spread rapidly over Germany until the time of the organization of the Jesuits, in 1542, when fully two-thirds of all Germany had revolted from papal authority and had become Protestant. After the organization of the Jesuits, the Reformation declined, on account of the zeal of that organization and the dissensions which arose among the Protestants.

Zwingli Was the Hero of the Reformation in Switzerland.—The Reformation which was begun by Zwingli at first took on a social and a political aspect and, being soon taken up by the state, resulted in a decision by the Council of Zurich that no preacher could advance any arguments not found in the Old or New Testament. This position, with some variations, was maintained through the entire Reformation. The moral and religious condition of the people of Switzerland was at a very low ebb, and the course of the Reformation was to preach against abuses. Zwingli drew his knowledge and faith from the Bible, holding that for authority one ought to return to it or to the primitive church. He advocated the abolition of image-worship, and, in addition, the abolition of enforced celibacy, nunneries, and the celebration of the mass. He held, too, that there ought to be a return to local church government, and that all of the cloisters should be converted into schools. He objected to so many days being devoted to the festivals of the saints, because it lessened the productive power of the people. The whole tenor of his preaching was that the Bible should be used as the basis of doctrine, and that there is no mediation except through Jesus Christ. As to the doctrine of the sacrament, he believed that the bread and wine are merely symbols, thus approximating the belief as established by the Protestants of the present day. On the other hand, Luther persistently held to the doctrine of transubstantiation, though the organized Protestant churches held to "consubstantiation."

The Reformation in Switzerland tended to develop more strongly an independent political existence, to make for freedom and righteousness, to work practical reforms in the abuses of both church and state, and to promote a deeper spiritual religion among the people.