Johann Eck was a staunch defender of the Pope and Rome, and a vocal enemy of Luther. He wrote a scathing attack on Luther’s 95 Theses on indulgences. Prior to the debate in Leipzig, Eck accused Luther of being a follower of Jan Hus. At the Leipzig debate Luther stated that Scripture alone is infallible.
After the debate at Leipiz, Eck traveled to Rome where he helped write the papal bull, Exsurge Domine. This document condemned Luther’s teachings and eventually led to the Diet of Worms, which Eck presided over and demanded Luther to recant. Luther did not, and the rest as they say, is history.