''Freedom of a Christian Man''. This pamphlet--published in both German and Latin in 1520--succintly set forth his views on ecclesiastical (church) reform. The title became a popular slogan that was widely echoed throughout the Reformation. Luther also published two other tracts in 1520 that filled out his thought and complemented ''Freedom of a Christian Man''. These were ''Babylonian Captivity of the Church'' (which questioned sacramental teachings) and ''Open Letter to the Christian Nobility''. ''Freedom of a Christian Man'' was a document of principles of piety, telling how a Christian should live<ref>[http://books.google.com/books?id=0TF12TnVtc8C&pg=PA3&dq=%22Freedom+of+a+Christian+Man%22&ei=XP-nSdjeHZTUlQTQ76CEBA]</ref>
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''Freedom of a Christian Man''. This pamphlet--published in both German and Latin in 1520--succintly set forth his views on ecclesiastical (church) reform. The title became a popular slogan that was widely echoed throughout the Reformation. Luther also published two other tracts in 1520 that filled out his thought and complemented ''Freedom of a Christian Man''. These were ''Babylonian Captivity of the Church'' (which questioned [[Sacrament|sacramental]] teachings) and ''Open Letter to the Christian Nobility''. ''Freedom of a Christian Man'' was a document of principles of piety, telling how a Christian should live<ref>[http://books.google.com/books?id=0TF12TnVtc8C&pg=PA3&dq=%22Freedom+of+a+Christian+Man%22&ei=XP-nSdjeHZTUlQTQ76CEBA]</ref>