"Freedom was the watchword of Martin Luther in his early days. His theology rested upon the foundation of the right of private judgment, and he boldly proclaimed the "universal priesthood of all Christians." …His own conduct, however, often departed widely from his abstract teaching. ... In practice he was often bitterly intolerant of his opponents. ... He favored banishment for Catholics who remained steadfast to their faith, and in 1530 signed a memorandum drafted by Melanchthon which justified the setting up of a regular system of coercion and the use of the death penalty for the most dangerous heretics or blasphemers. Concerning this point a Protestant theologian [Walther Kohler] says: "The death-penalty for heresy rested on the highest Lutheran authority.""