https://digitalcommons.andrews.edu/cgi/viewcontent.cgi?article=1087&context=pd
Document Page : 9.
During his protective confinement at Wartburg Castle, he continued to describe the papacy as the antichrist: “St. Paul calls Antichrist the man of sin and the son of perdition, because through his precepts and laws he will turn all the world from God and prevent God and the world from coming together; he shall be a master of sin and all iniquity, and yet will retain the name and appearance of Christ and call himself Sanctimus and Vicarius Dei and Caput Ecclesiae [‘most holy one; vicar of God; head of the Church’], and persecute all who will not obey him. It is easy to recognize that the pope more than fits this description.”