In another letter, to a priest who had become a disciple of the gospel, Huss spoke with deep humility of his own errors, accusing himself "of having felt pleasure in wearing rich apparel and of having wasted hours in frivolous occupations." He then added these touching admonitions: "May the glory of God and the salvation of souls occupy thy mind, and not the possession of benefices and estates. Beware of adorning thy house more than thy soul; and, above all, give thy care to the spiritual edifice. Be pious and humble with the poor, and consume not thy substance in feasting. Shouldst thou not amend thy life and refrain from superfluities, I fear that thou wilt be severely chastened, as I am myself. . . . Thou knowest my doctrine, for thou hast received my instructions from thy childhood; it is therefore useless for me to write to thee any further. But I conjure thee, by the mercy of our Lord, not to imitate me in any of the vanities into which thou hast seen me fall." On the cover of the letter he added: "I conjure thee, my friend, not to break this seal until thou shalt have acquired the certitude that I am dead". -Emile de Bonnechose, The Reformers Before the Reformation: The Fifteenth Century : John Huss and the Council of Constance, book II, chapter I.
On his journey, Huss everywhere beheld indications of the spread of his doctrines and the favor with which his cause was regarded. The people thronged to meet him, and in some towns the magistrates attended him through their streets.
Upon arriving at Constance, Huss was granted full liberty. To the emperor's safe-conduct was added a personal assurance of protection by the pope. But, in violation of these solemn and repeated declarations, the Reformer was in a short time arrested, by order of the pope and cardinals, and thrust into a loathsome dungeon.
Later he was transferred to a strong castle across the Rhine and there kept a prisoner. The pope, profiting little by his perfidy, was soon after committed to the same prison. Ibid., vol. 1, p. 247. He had been proved before the council to be guilty of the basest crimes, besides murder, simony, and adultery, "sins not fit to be named." So the council itself declared, and he was finally deprived of the tiara and thrown into prison. The antipopes also were deposed, and a new pontiff was chosen.
Though the pope himself had been guilty of greater crimes than Huss had ever charged upon the priests, and for which he had demanded a reformation, yet the same council which degraded the pontiff proceeded to crush the Reformer.
The imprisonment of Huss excited great indignation in Bohemia. Powerful noblemen addressed to the council earnest protests against this outrage. The emperor, who was loath to permit the violation of a safe-conduct, opposed the proceedings against him. But the enemies of the Reformer were malignant and determined. They appealed to the emperor's prejudices, to his fears, to his zeal for the church. They brought forward arguments of great length to prove that "faith ought not to be kept with heretics, nor persons suspected of heresy, though they are furnished with safe-conducts from the emperor and kings."--Jacques Lenfant, History of the Council of Constance, vol. 1, p. 516. Thus they prevailed.