The peasants had used the Bible to support their grievances, and in turn, to justify their rebellion, and Luther would turn it against them. He spoke out against the peasants, specifically rebutting "The Twelve Articles of the Christian Union of Upper Swabia", joining with Roman Catholics to combat the angry horde. Luther's "Admonition to Peace" was written to serve several functions, initially to prevent bloodshed at the hands of armed peasant mobs, but also to remove the misinterpretation of scripture as justification for violence, and finally as a response to several appeals that called for his counsel.