Leipzig Disputation (1519)
The quarrel had begun in print: Eck attacked Luther’s positions, and Karlstadt answered with a large set of theses before the men met face to face. At Leipzig in the summer of 1519, Johann Eck debated Andreas Karlstadt and then Martin Luther before an audience assembled under Duke George of Saxony. The argument began with familiar controversies about grace and papal primacy. Eck pressed Luther onto more dangerous ground: whether Jan Hus had been right on any point condemned at the Council of Constance. The challenge mattered because Eck could link Luther’s appeal to Scripture with Hus, whom the Council of Constance had condemned a century earlier. Luther had to explain whether a council’s judgment could itself be tested by the biblical text.1
A simple layman armed with Scripture is to be believed above a pope or a council without it.Martin LutherLeipzig debate, as reported by Roland Bainton3
The Debate and Its Outcome
Luther conceded that some of Hus’s propositions were Christian and that a council could err. The dispute therefore moved past the abuses of indulgence preaching. It asked whether pope or council could require belief apart from Scripture. That question would recur throughout the Reformation, from the examination at Worms to the confessional settlements of later decades.2
Why It Matters
Neither side admitted defeat. The public exchange nonetheless clarified the break taking shape. Eck saw a challenge to the church’s teaching office; Luther increasingly appealed to Scripture over decrees that he believed contradicted it. Leipzig helped make the question of authority unavoidable.
