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27 June to 15 July 1519, key exchange 4 JulyGeneral source · 2 sourcesWell documented

The Leipzig Debate Forces Luther to Reject Councils

Cornered by Johann Eck, Luther admits he agrees with the executed heretic Jan Hus

On the timeline · around 27 June to 15 July 1519, key exchange 4 July · Luther's RevoltBefore LutherLuther's RevoltThe Leipzig Debate Forces Luther to Reject Councils150015101520

Quick facts

Participants
Johann Eck vs. Martin Luther and Andreas Karlstadt
Location
Pleissenburg Castle, Leipzig
Duration
27 June to 15 July 1519

What happened

The Ingolstadt theologian Johann Eck, once on friendly terms with Luther, challenged Luther's ally Andreas Karlstadt to a public disputation at Pleissenburg Castle in Leipzig, and Luther joined when the debate widened to include indulgences, purgatory, and papal authority. Leipzig's council gave Eck a bodyguard of 76 men, while Luther and Karlstadt arrived with 200 students armed with battle-axes. On 4 July, Eck pressed Luther to state whether church councils, like popes, could also err. Luther conceded that they could, pointing out that the Council of Constance had condemned articles of Jan Hus that Luther now believed were actually scriptural. Eck immediately branded Luther a Hussite, intending it as a career-ending accusation.

Why it matters

By denying that either the pope or a general council held final, error-free authority over doctrine, Luther had removed the only two institutional checks the Church could use to correct him. He later read more of Hus's writing and admitted, in his own words, that he and his allies were Hussites without knowing it, a statement that placed him in the same theological lineage as a man Rome had already burned as a heretic.

How we know

Transcripts and later published accounts of the disputation survive, along with Luther's own subsequent writings referencing Hus; 1517.org's account of the debate and the Christian History Institute's related coverage of Luther's early controversies both draw on this record.

Sources

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