Luther's second observation is that the Qur'an teaches the Turk "to destroy not only the Christian faith, but also the whole temporal government." The Turks rule by the sword—that is, by force and coercion. "The Turkish faith, then, has not made its progress by preaching and the working of miracles, but by the sword and by murder." Islam is a religion of violence and brutality that has rejected the grace and peace that comes with the gospel of Christ.

Green, Todd H, The Fear of Islam_ An Intro…, loc. 151