Grace Alone and Scripture alone at Leipzig

It really was not about indulgences. The Ninety-Five Theses were a spark that ignited a debate about the place of the Pope and other church authorities. Luther’s opponents noticed the Reformer had challenged their authority when he criticized the abuse of indulgences. Luther had given German princes the excuse they needed to forbid the sale of forgiveness. Luther pleased Renaissance thinkers, who lived by the motto Ad Fontes (to the source) and put the allies of the papacy on the defensive. That is why the attack on an obscure monk consumed all of Europe and why Johann Eck led the charge.

Eck challenged Luther’s friend Andreas Karlstadt to a disputation about free will and grace. He did this hoping the Reformer would join the debate. His goal was to get the Reformer to admit he was attacking the Pope and his power. Duke George “the Beard” of Saxony offered to host the disputation in Leipzig. He pressured the University of Leipzig into organize the event. On 27 June 1519, the disputation opened with a mass at St. Thomas Church (where two centuries later Johann Sebastian Bach would be a Church musician and composer) The event itself was held in the great hall of Duke George’s castle.

Karlstadt and Eck began the debate by discussing the role of free will and grace in the salvation of sinners. Karlstadt argued that a sinner had nothing to contribute to his own salvation, but was completely dependent on the grace of God. He defended this doctrine on the basis of the Scriptures. Eck responded that the Pope and Church tradition taught that grace was necessary, but there was something in a person that worked with it to save him. Karlstadt countered that Scripture is the final word on such matters. The Wittenberg professor was a good scholar, but Eck was a brilliant debater and had set the table for Luther to enter the discussion.

Luther and Eck covered a wide range of topics. In the end, the debate turned on the authority of the Pope and Church Councils. Eck accused Luther of promoting the teachings of Jan Hus, who was condemned as a heretic by the Council of Constance one hundred years earlier. Hus was burned at the stake when the Holy Roman Emperor at the time went back on his promise to Hus of safe conduct. It was a powerful slander. With that, Eck labeled Luther and his followers Lutheran, implying they followed Luther and not Christ. This forced Luther to admit that both Popes and Councils could make mistakes and that there was some truth to the charge.

Later Eck would admit that Luther had proved twelve of his thirteen theses. The last one, and in his eyes, the most important, Eck believed he had won. The result was to make clear the brake between the teachings of Luther, and the Scriptures, and the Pope. There would be no turning back. It was only a matter of time before the church would excommunicate Luther.