At Wittenberg the iconoclasts under Carlstadt had instituted radical changes that Luther greatly deplored. Fearing that his movement was endangered, Luther disregarded his personal safety and returned to Wittenberg, where he spent most of the remainder of his life organizing and spreading the new gospel. Luther suffered a loss of popular appeal when he stoutly opposed (1524–25) the Peasants' War, a revolt that his own spirit of independence had helped to foster. His position was further weakened by a break with the humanists brought about by Erasmus's work, Freedom of the Will (1524), in which Erasmus attacked Luther's doctrine of the enslaved will. Nevertheless, through his forceful writings and preaching his doctrines spread to many towns and free cities, strengthened by the support of many German nobles.
He married (1525) a former nun, Katharina von Bora, and raised six children. His closest friends and associates, Philip Melanchthon and Justus Jonas, helped carry forward his endeavors, and after the death of Frederick III he enjoyed the active support of John Frederick I, who succeeded to the electorate. Luther worked actively to build a competent educational system; his extensive writing on church matters included the composition of hymns, a liturgy, and two catechisms that are basic statements of the Lutheran faith.
His attitude hardened toward various sects, especially the Anabaptists, whose growth presented a serious challenge to his conception of the church. His uncompromising attitude in doctrinal matters helped break up the unity of the Reformation that he was anxious to preserve; the controversy with Huldreich Zwingli and later with Calvin over the Lord's Supper divided Protestants into the Lutheran Church and the Reformed Churches. After attempts at union, the Lutherans drew up their own articles of faith in the Augsburg Confession (see creed
During the last years of Luther's life he was troubled with ill health of increasing severity and the plagues of political and religious disunion within the nation. He died in Eisleben and was buried at Wittenberg, leaving behind an evangelical doctrine that spread throughout the Western world and marked the first break in the unity of the Catholic Church. In Germany his socio-religious concepts laid a new basis for German society. His writings, in forceful idiomatic language, helped fix the standards of modern German.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.