The Leipzig Disputation

Summary

The Leipzig Disputation was a formal academic debate held in the great hall of the Pleissenburg, the ducal castle at Leipzig, from late June to mid-July 1519, under the patronage of Duke George of Saxony and against the wishes of the local bishop of Merseburg. It grew out of a challenge by Johann Eck of Ingolstadt, who had criticized Luther's theses on indulgences and in late 1518 published theses for debate with Andreas Karlstadt of Wittenberg, aimed in fact at Luther. Luther answered with counter-theses, the last of which said that the supremacy of the Roman church rested only on papal decrees of the previous four centuries, against the testimony of Scripture, the history of the early Church and the Council of Nicaea. The Wittenberg party arrived on 24 June with Karlstadt, Luther, Philip Melanchthon and a large escort of students. After a Mass and an opening oration on the art of disputing by the humanist Petrus Mosellanus, the debate began on 27 June. Eck and Karlstadt argued for about a week over grace and free will: whether the human will is merely passive under grace or has a part of its own in good works. Eck was widely judged the quicker debater, and he objected to Karlstadt's habit of reading from his books. From 4 July Eck faced Luther on the primacy of the pope. Eck argued that the Roman primacy was established by divine right, from Christ's words to Peter in Matthew 16, the tradition of the fathers and the decisions of councils. Luther replied that the rock of Matthew 16 was Peter's confession of faith or Christ himself, that the Greek churches had never been under Rome yet were Christian, and that the primacy rested on human arrangement. Eck pressed him to say that he agreed with the condemned Bohemian Jan Hus, and Luther declared that some of Hus's articles condemned at the Council of Constance were thoroughly Christian and evangelical, and that a council could err. The two then debated purgatory, indulgences and penance, and Eck and Karlstadt briefly resumed on grace before the disputation closed in mid-July. Notaries took down the proceedings, and the universities of Erfurt and Paris were asked to judge; neither delivered a timely verdict, though both sides claimed victory. Eck went to Rome and helped draft the bull Exsurge Domine of 1520, while Luther, having stated publicly that popes and councils could err, wrote his great treatises of 1520. No public-domain English text of the disputation is stored in this library.

Plot or Argument

• The challenge (1518-1519)

  Eck's critique of the Ninety-Five Theses and his published theses against Karlstadt draw Luther in; Luther's thirteenth counter-thesis denies that the Roman primacy rests on more than recent papal decrees. Duke George secures the Pleissenburg as venue over the objections of the bishop of Merseburg and some of the Leipzig theologians.

• Arrival and opening (24-27 June 1519)

  The Wittenbergers arrive with an escort of students; rules are agreed for notaries to record the debate and for universities to judge it. Petrus Mosellanus delivers the opening oration on how to dispute.

• Eck against Karlstadt: grace and free will

  For about a week Karlstadt defends the Augustinian view that the will contributes nothing to good works apart from grace; Eck argues that the will, moved by grace, cooperates and has its own part in the good it does.

• Eck against Luther: the papacy

  From 4 July Eck defends the primacy of Rome by divine right from Matthew 16:18, the fathers and the councils; Luther argues from Scripture, the Greek churches and early history that the primacy is of human origin.

• Hus and the authority of councils

  Eck links Luther's views to Jan Hus; Luther affirms that some of Hus's condemned articles were Christian and evangelical and that a general council, Constance included, could err.

• Purgatory, indulgences and penance

  In the closing days Eck and Luther debate the scriptural basis of purgatory, the value of indulgences and the nature of penance, and Eck and Karlstadt briefly return to grace.

• Judgement and aftermath

  The protocols go to the universities of Erfurt and Paris, which do not deliver a timely judgement. Both sides publish accounts claiming victory; Eck goes to Rome and contributes to Exsurge Domine (1520), and Luther writes his reforming treatises of 1520.

Characters

• Johann Eck, disputant (Ingolstadt)

  Theologian of great learning and memory who defended the papal primacy and pressed Luther on Hus.

• Andreas Karlstadt, disputant (Wittenberg)

  Luther's colleague who debated Eck on grace and free will in the first and last sessions.

• Martin Luther, disputant (Wittenberg)

  Augustinian friar and professor who argued that the papal primacy was of human origin and that councils could err.

• Duke George of Saxony, patron and host

  Albertine duke who insisted the debate be held at Leipzig and attended many sessions.

• Petrus Mosellanus, orator

  Leipzig humanist and Greek scholar who delivered the opening oration on the art of disputing.

• Philip Melanchthon, observer

  Young Wittenberg professor of Greek who accompanied Luther and wrote an account of the debate.

Lessons

• The disputation as a school of argument

  Leipzig was a formal university disputation with agreed rules, notaries and appointed judges. It shows how late medieval scholars tested claims publicly, and how much depended on preparation, memory and command of authorities.

  • Why were notaries and outside judges part of the arrangements, and what did each side hope they would secure?
  • Eck objected to Karlstadt reading from books during the debate. What does this tell us about what a good disputant was expected to do?
  • What advantages did Eck's style give him, and what did Luther's give him?

• Authority: Scripture, fathers, councils and popes

  The central question was where final authority in the Church lies. Eck argued that the papacy was established by Christ and confirmed by fathers and councils; Luther argued that Scripture stands above popes and councils, which can err.

  • How did each disputant read Matthew 16:18?
  • Why was the example of the Greek churches important to Luther's argument?
  • If councils can err, what holds the Church together? How would Eck and Luther each answer?

• The weight of a name: Jan Hus

  Eck's strategy was to show that Luther's position led to that of Hus, condemned and burned at the Council of Constance in 1415. Luther's admission that some of Hus's articles were Christian made the debate a turning point in his own career.

  • Why was associating Luther with Hus such a powerful move in 1519?
  • Did Luther's answer about Hus follow from his earlier arguments, or did Eck lead him further than he intended?

• Grace and the will before Erasmus

  The opening exchange between Eck and Karlstadt took up whether the will has a part of its own in good works. The same question, argued here in scholastic terms, returned in the debate between Erasmus and Luther in 1524-1525.

  • What was at stake in saying the will is passive under grace rather than cooperating with it?
  • How does the Eck-Karlstadt exchange prepare the ground for Erasmus's On Free Will?

Context

Luther's Ninety-Five Theses of 1517 had become a public controversy by 1518, when he was examined by Cardinal Cajetan at Augsburg. The papal envoy Karl von Miltitz had negotiated a pause in early 1519, but Eck's challenge reopened the dispute. Saxony was divided between Elector Frederick the Wise, Luther's protector at Wittenberg, and his cousin Duke George, who ruled the Albertine lands including Leipzig and favoured a public test of the Wittenberg theology. The death of Emperor Maximilian in January 1519 and the imperial election of June gave the debate a tense political background.

Composition

The debate was recorded by notaries, and the protocols were to remain unpublished until the judging universities had pronounced; unofficial accounts and the participants' own writings soon circulated. The record was later printed in Latin, and modern scholarly editions exist. Luther, Eck, Karlstadt and Melanchthon all published explanations or reports in 1519.

Reception

Both sides claimed the victory. Many observers credited Eck with the better debating, while the Wittenberg party believed Luther had shown the scriptural weakness of the papal claim. Historians generally see Leipzig as the point at which Luther publicly placed Scripture above popes and councils and was identified with Hus, a step toward the bull Exsurge Domine (1520) and his excommunication in 1521. It also brought Melanchthon and others into the Wittenberg movement and made Eck its principal Catholic opponent.

Comparisons

• luther-selected-sermons-and-treatises

  Luther's 1520 treatises, written in the year after Leipzig, develop the positions on authority and the Church that he first stated publicly there.

• erasmus-on-free-will

  The Eck-Karlstadt exchange on grace and the will anticipates the question Erasmus put to Luther in 1524.

• luther-bondage-of-the-will

  Luther's fullest statement on grace and the will, written six years after Karlstadt's debate with Eck on the same question.

• webster-second-reply-to-hayne

  A later debate over who is the final judge of disputed questions, the states or the Union and its courts, set beside Leipzig's question of whether popes, councils or Scripture have the last word.

• lincoln-douglas-debates

  Another public debate in which a skilful questioner pressed his opponent toward a costly admission, Eck on Hus at Leipzig and Lincoln at Freeport.

Quotes

For Students

A reading companion for classical Christian high school students. See the student guide.

Reading Guide

Watch for

• How a small exchange of theses in 1518 turned a debate nominally between Eck and Karlstadt into a contest with Luther.
• The rules agreed at the start: notaries, judging universities and a ban on publication until judgement. Ask what each party hoped to gain from them.
• The first week's argument between Eck and Karlstadt about whether the will has a part of its own in good works.
• Eck's use of Matthew 16:18 and Luther's appeal to the Greek churches and early history in the debate on the papacy.
• The moment Eck brings up Jan Hus, and Luther's answer about the Council of Constance.

Key terms and names

disputation

A formal academic debate on written theses, with a respondent and an opponent, conducted under agreed rules. Leipzig followed this university form.

Pleissenburg

The ducal castle at Leipzig whose great hall was fitted out for the debate by Duke George of Saxony.

primacy of Rome

The claim that the bishop of Rome holds authority over the whole Church. Eck defended it as of divine right; Luther argued it was of human origin.

divine right (ius divinum)

Authority established by God himself, as opposed to human law or custom. The key question was whether the papacy existed by divine or by human right.

Jan Hus

Bohemian priest and reformer condemned and burned at the Council of Constance in 1415. Eck's comparison of Luther to Hus was the decisive move of the debate.

Council of Constance

General council of 1414-1418 that ended the Great Schism and condemned Hus. Luther's claim that it erred in some condemnations implied that councils can err.

theses

Numbered propositions published in advance for debate. Eck's theses (twelve at first, later thirteen) and Luther's counter-theses defined the questions argued at Leipzig.

Seminar Questions

1. Comprehension Who were the three main disputants, and on which questions did each pair debate?
2. Comprehension What did Luther's thirteenth thesis claim about the Roman primacy?
3. Comprehension What did Luther say about Jan Hus and the Council of Constance, and why did Eck consider this a victory?
4. Interpretation Eck and Luther both appealed to Scripture and to history. How did they differ in what they took as the final authority?
5. Interpretation Why might many observers have credited Eck with the better debating while the Wittenbergers still believed they had the better case?
6. Interpretation How does the Eck-Karlstadt exchange on grace and the will connect to the later debate between Erasmus and Luther?
7. Big Question When a community disagrees about truth, who has the authority to settle the question, and what should happen if that authority can err?

Faith Connections

• Matthew 16:13-19 (Scripture)

  Peter's confession and Christ's words about the rock and the keys were the central text of the debate on the papacy; Eck read the rock as Peter and his successors, Luther as Peter's confession of faith or Christ himself.

• Acts 15:1-29 (Scripture)

  The Council of Jerusalem shows the apostles and elders deliberating together on a disputed question, a passage both defenders of councils and defenders of Scripture's authority have drawn on.

• Galatians 2:11-14 (Scripture)

  Paul's public correction of Peter at Antioch was cited in Reformation debates over whether Peter's successors could be corrected.

• Cyprian of Carthage, On the Unity of the Church (Church Fathers)

  Cyprian's treatment of Peter and the unity of the episcopate was a standard patristic text in arguments over the Roman primacy, read differently by its defenders and critics.

Logic and Rhetoric

Central argument: Eck: Christ founded his Church on Peter and gave him the keys; the fathers and councils confirm the Roman primacy; therefore it exists by divine right, and anyone who denies it shares the error condemned at Constance in Hus. Luther: the rock is the faith Peter confessed, not Peter's see; the Greek churches were Christian without submitting to Rome; the primacy rests only on recent decrees; and since popes and councils can err, Scripture must judge them.

Rhetorical device: reductio by association (leading the opponent to an admission). Eck repeatedly drew parallels between Luther's statements on the papacy and the condemned articles of Jan Hus until Luther affirmed that some of Hus's articles were Christian and that the Council of Constance had erred.

Debate: Resolved: that a general council of the Church can err in matters of faith.

Writing Prompts

Essay: Leipzig is often called a turning point in Luther's career. Using the debate on the papacy and the exchange over Jan Hus, explain what Luther said there that he had not said before, and argue whether Eck's tactics helped or hindered his own cause.

Comparison with Selected Sermons and Reformation Treatises: Compare the claims about authority Luther made at Leipzig in 1519 with those in his 1520 treatises. What did the debate force him to clarify, and what new arguments appear once he is free of the disputation format?

Medical Lens

The disputation concerned grace, the papacy, councils, purgatory and indulgences; it has no medical content.

Creative Prompts

• Classroom

  Stage a short formal disputation in class with a moderator, a notary and two judges, on the question of where final authority in a community should lie. Afterward, discuss what the format helped and hindered.

• Fiction

  Write the diary entry of a Wittenberg student who walked to Leipzig with Luther's party in June 1519 and sat in the Pleissenburg hall.

• Dialogue

  Write the exchange between Eck and Luther on Matthew 16:18 as each man might have put it, giving each his strongest argument.

• Essay

  Explain why Eck's question about Jan Hus mattered so much, and assess whether Luther could have answered it differently without abandoning his position.

Further Reading

• Martin Luther: His Road to Reformation, 1483-1521, Martin Brecht

  Detailed account of the preparations for and course of the debate.

• Here I Stand: A Life of Martin Luther, Roland H. Bainton

• Enchiridion of Commonplaces against Luther and Other Enemies of the Church, Johann Eck; trans. Ford Lewis Battles

  Eck's later handbook, giving his side of the questions of authority in his own terms.

• Martin Luther: Visionary Reformer, Scott H. Hendrix

• The Reformation: A History, Diarmaid MacCulloch