Martin Luther OSA was a German priest, theologian, author, hymnwriter, professor, and Augustinian friar. He was the seminal figure of the Protestant Reformation, and his theological beliefs form the basis of Lutheranism. Luther was ordained to the priesthood in 1507.

Soon after Luther’s birth, his family moved from Eisleben to the small town of Mansfeld, some 10 miles (16 km) to the northwest. His father, Hans Luther, who prospered in the local copper-refining business, became a town councillor of Mansfeld in 1492. There are few sources of information about Martin Luther’s childhood apart from his recollections as an old man; understandably, they seem to be coloured by a certain romantic nostalgia.

Luther began his education at a Latin school in Mansfeld in the spring of 1488. There he received a thorough training in the Latin language and learned by rote the Ten Commandments, the Lord’s Prayer, the Apostles’ Creed, and morning and evening prayers. In 1497 Luther was sent to nearby Magdeburg to attend a school operated by the Brethren of the Common Life, a lay monastic order whose emphasis on personal piety apparently exerted a lasting influence on him. In 1501 he matriculated at the University of Erfurt, at the time one of the most distinguished universities in Germany. The matriculation records describe him as in habendo, meaning that he was ineligible for financial aid, an indirect testimonial to the financial success of his father. Luther took the customary course in the liberal arts and received the baccalaureate degree in 1502. Three years later he was awarded the master’s degree. His studies gave him a thorough exposure to Scholasticism; many years later, he spoke of Aristotle and William of Ockham as “his teachers.”

Having graduated from the arts faculty, Luther was eligible to pursue graduate work in one of the three “higher” disciplines—law, medicine, or theology. In accordance with the wishes of his father, he commenced the study of law. Proudly he purchased a copy of the Corpus Juris Canonici (“Corpus of Canon Law”), the collection of ecclesiastical law texts, and other important legal textbooks. Less than six weeks later, however, on July 17, 1505, Luther abandoned the study of law and entered the monastery in Erfurt of the Order of the Hermits of St. Augustine, a mendicant order founded in 1256. His explanation for his abrupt change of heart was that a violent thunderstorm near the village of Stotternheim had terrified him to such a degree that he involuntarily vowed to become a monk if he survived. Because his vow was clearly made under duress, Luther could easily have ignored it; the fact that he did not indicates that the thunderstorm experience was only a catalyst for much deeper motivations. Luther’s father was understandably angry with him for abandoning a prestigious and lucrative career in law in favour of the monastery. In response to Luther’s avowal that in the thunderstorm he had been “besieged by the terror and agony of sudden death,” his father said only: “May it not prove an illusion and deception.”

By the second half of the 15th century, the Augustinian order had become divided into two factions, one seeking reform in the direction of the order’s original strict rule, the other favouring modifications. The monastery Luther joined in Erfurt was part of the strict, observant faction. Two months after entering the monastery, on September 15, 1505, Luther made his general confession and was admitted into the community as a novice.

Luther’s new monastic life conformed to the commitment that countless men and women had made through the centuries—an existence devoted to an interweaving of daily work and worship. His spartan quarters consisted of an unheated cell furnished only with a table and chair. His daily activities were structured around the monastic rule and the observance of the canonical hours, which began at 2:00 in the morning. In the fall of 1506, he was fully admitted to the order and began to prepare for his ordination to the priesthood. He celebrated his first mass in May 1507 with a great deal of fear and trembling, according to his own recollection.

But Luther would not settle for the anonymous and routine existence of a monk. In 1507 he began the study of theology at the University of Erfurt. Transferred to the Augustinian monastery at Wittenberg in the fall of 1508, he continued his studies at the university there. Because the university at Wittenberg was new (it was founded in 1502), its degree requirements were fairly lenient. After only a year of study, Luther had completed the requirements not only for the baccalaureate in Bible but also for the next-higher theological degree, that of Sententiarius, which would qualify him to teach Peter Lombard’s Four Books of Sentences (Sententiarum libri IV), the standard theological textbook of the time. Because he was transferred back to Erfurt in the fall of 1509, however, the university at Wittenberg could not confer the degrees on him. Luther then unabashedly petitioned the Erfurt faculty to confer the degrees. His request, though unusual, was altogether proper, and in the end it was granted.