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Ninety-five Theses

Disputation by Martin Luther on indulgences

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Martin Luther’s Disputatio pro declaratione virtutis indulgentiarum of 1517, commonly known as the Ninety-Five Theses, is considered the central document of the Protestant Reformation. Its complete ti
Martin Luther · Public domain

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The Theses are framed as propositions to be argued in an academic debate rather than necessarily representing Luther's opinions. They aired contemporary theological misgivings about the theory and practice of indulgences and their relation to repentance, penance and papal authority. This was triggered by the scandal of certain Catholic clergy who were supposedly selling plenary indulgences in Germany, which were certificates supposed to reduce the punishment in purgatory required for sins committed by the saved purchasers or their loved ones.

Background

Martin Luther, professor of moral theology at the University of Wittenberg and town preacher, wrote the Ninety-five Theses against the contemporary practice of the church with respect to indulgences. In the Roman Catholic Church, which was practically the only Christian church in Western Europe at the time, indulgences were part of the economy of salvation. In this system, when Christians sin and confess, they are forgiven and no longer stand to receive eternal punishment in hell, but may still be liable to temporal punishment. This punishment could be satisfied by the penitent's performing works of mercy. If the temporal punishment is not satisfied during life, it needs to be satisfied in the afterlife in purgatory, a place believed by Catholics to exist between heaven and hell. By indulgence (which may be understood in the sense of "kindness"), this temporal punishment could be lessened. Under abuses of the system of indulgences, clergy benefited by selling indulgences, and the pope gave official sanction in exchange for a fee.

Popes are empowered to grant plenary indulgences, which provide complete satisfaction for any remaining temporal punishment due to sins, and these were purchased on behalf of people believed to be in purgatory. This led to the popular saying, "As soon as the coin in the coffer rings, the soul from purgatory springs". Theologians at the University of Paris criticized this saying late in the 15th century. Earlier critics of indulgences included John Wycliffe, who denied that the pope had jurisdiction over purgatory. Jan Hus and his followers had advocated a more severe system of penance, in which indulgences were not available. Johannes von Wesel had also attacked indulgences late in the 15th century. Political rulers had an interest in controlling indulgences because local economies suffered when the money for indulgences left a given territory. Rulers often sought to receive a portion of the proceeds or prohibited indulgences altogether, as Duke George did in Luther's Electoral Saxony.

In 1515, Pope Leo X granted a plenary indulgence intended to finance the construction of St. Peter's Basilica in Rome. It would apply to almost any sin, including adultery and theft. All other indulgence preaching was to cease for the eight years in which it was offered. Indulgence preachers were given strict instructions on how the indulgence was to be preached, and they were much more laudatory of the indulgence than those of earlier indulgences. Johann Tetzel was commissioned to preach and offer the indulgence in 1517, and his campaign in cities near Wittenberg drew many Wittenbergers to travel to these cities and purchase them, since sales had been prohibited in Wittenberg and other Saxon cities.

Luther's views were informed by his experience at All Saints' Church, Wittenberg. By venerating the large collection of relics at the church, one could receive an indulgence. Luther had preached as early as 1514 against the abuse of indulgences and the way they cheapened grace rather than requiring true repentance. Luther became especially concerned in 1517 when his parishioners, returning from purchasing Tetzel's indulgences, claimed that they no longer needed to repent and change their lives to be forgiven of sin. After hearing what Tetzel had said about indulgences in his sermons, Luther began to study the issue more carefully and contacted experts on the subject. He preached about indulgences several times in 1517, explaining that true repentance was better than purchasing an indulgence. He taught that receiving an indulgence presupposed that the penitent had confessed and repented; otherwise, it was worthless. A truly repentant sinner would also not seek an indulgence because they loved God's righteousness and desired the inward punishment of their sin. These sermons seem to have ceased from April to October 1517, presumably while Luther was writing the Ninety-five Theses. He composed a Treatise on Indulgences, apparently in early autumn 1517. It is a cautious and searching examination of the subject. He contacted church leaders on the subject by letter, including his superior Hieronymus Schulz, Bishop of Brandenburg, sometime on or before 31 October, when he sent the Theses to Archbishop Albert of Brandenburg.

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