In Thuringia, in the Harz, and elsewhere, numbers of convents, and even castles, were reduced to ashes. The princes were everywhere unprepared with the necessary troops, while the insurgents in Thuringia and Saxony counted more than 30,000 men. The former, therefore, endeavoured to strengthen themselves by coalition. Duke John, at Weimar, prepared himself for the worst: his brother, the Elector Frederick, was lying seriously ill at his Castle at Lochau (now Annaburg) in the district of Torgau.
At this crisis Luther, having left Eisleben, appeared in person among the excited population. He preached at Stolberg, Nordhausen, and Wallhausen. In his subsequent writings he could bear witness of himself, how he had been himself among the peasants, and how, more than once, he had imperilled life and limb. On May 3 we find him at Weimar; and a few days afterwards in the county of Mansfeld. Here he wrote to his friend, the councillor Rühel of Mansfeld, advising him not to persuade Count Albert to be 'lenient in this affair'--that is, against the insurgents; for the civil power must assert its rights and duties, however God might rule the issue. 'Be firm,' he entreats Rühel, 'that his Grace may go boldly on his way. Leave the matter to God, and fulfil His commands to wield the sword as long as strength endures. Our consciences are clear, even if we are doomed to be defeated.... It is but a short time, and the righteous Judge will come.'
Luther now hastened back to his Elector, having received a summons from him at Lochau. But before he could arrive there, Frederick had peacefully breathed his last, on May 5. Faithfully and discreetly, and in the honest conviction that truth would prevail, he had accorded Luther his favour and protection, whilst purposely abstaining to employ his power as ruler for infringing or invading the old-established ordinances of the Church. He allowed full liberty of action to the bishops, and carefully avoided any personal intercourse with Luther. But in the face of death, he confessed the truth of the gospel, as preached by Luther, by partaking of the communion in both kinds, and refusing the sacrament of extreme unction.
When his corpse was brought in state to Wittenberg, and buried in the Convent Church, Luther, who had to preach twice on the occasion, spoke of the universal grief and lamentation that 'our head is fallen, a peaceful man and ruler, a calm head.' And he pointed out as the 'most grievous sorrow of all,' how this loss had happened just in those difficult and wondrous times when, unless God interposed His arm, destruction threatened the whole of Germany. He exhorted his hearers to confess to God their own ingratitude for His mercy in having given them such a noble vessel of His grace. But of those who set themselves against authorities, he declared, in the words of the Apostle (Rom. xiii. 2), that 'they shall receive to themselves damnation.' 'This text,' he said, 'will do more than all the guns and spears.'