This essay is concerned with Martin Luther (1483-1546) and his concept of Christianity. Consequently, Luther was initially loyal to the papacy and after many theological conflicts, he tried to reconcile with the church. But this was a paradox not to endure because in his later years, Luther waged a continual battle with the papacy. Martin Luther, although he was not a politician, saw himself as a professor of the Holy Scriptures and a teacher of the church. Like St. Thomas, Luther believed that each person had his proper place in society and should keep it, and he used the word ''calling" to suggest that God wants a Christian to be dedicated to his vocation. He set in motion epochal changes in the culture and politics of 16th-century Europe, changes that helped shape the history not only of Europe but also of the world.…