In July 1505, a terrified 21-year-old law student caught in a thunderstorm vowed to become a monk, a moment that would eventually fracture Western Christianity. This deep dive traces Martin Luther’s psychological journey from a pressured childhood and an anxiety-ridden monastic life of extreme penance to the theological breakthrough of justification by faith alone.

The episode explains how that internal discovery collided with the sale of indulgences, the viral spread of the 95 Theses, excommunication, the Diet of Worms and his hiding at the Wartburg, where he translated the New Testament into German. It also confronts his role in the Peasants’ War, his marriage to Katharina von Bora, his catechisms and his virulent later antisemitism.

• How Johann von Staupitz redirected Luther’s spiritual crisis toward study and teaching at Wittenberg
• Why salvation as a free gift threatened the church’s indulgence revenue and authority
• How Frederick the Wise staged a fake highway robbery to protect Luther for political as well as religious reasons
• Why Luther urged nobles to crush the Peasants’ War and how he shifted from radical to institution builder
• His 1543 writings against Jewish people, their later exploitation by the Nazi party, and his final note: We are beggars