Why Did Martin Luther Really Leave the Catholic Church 🔥 Martin Luther never set out to destroy the Catholic Church. He was a devout Augustinian monk, a priest, and a theology professor who wanted reform from within. But what started as an academic protest over indulgences in 1517 spiraled into a complete rejection of core Catholic doctrines, papal authority, and five of the seven sacraments. This video tells the full story that most people never hear. ⚡ Luther didn't just challenge corruption.