The fate of Luther was considered sealed.

His works were publicly burned in several cities.
Luther, undaunted, replied with blow for blow.

He declared the pope to be antichrist, renounced all obedience to him, detailed with scathing severity the conduct of corrupt pontiffs, and called upon the whole nation to renounce all allegiance to the scandalous court of Rome.

To cap the climax of his contempt and defiance, he, on the 10th of December, 1520, not two months after the crowning of Charles V., led his admiring followers, the professors and students of the university of Wittemberg, in procession to the eastern gate of the city, where, in the presence of a vast concourse, he committed the papal bull to the flames, exclaiming, in the words of Ezekiel, "Because thou hast troubled the Holy One of God, let eternal fire consume thee." This dauntless spirit of the reformer inspired his disciples throughout Germany with new courage, and in many other cities the pope's bull of excommunication was burned with expressions of indignation and contempt.
Such was the state of this great religious controversy when Charles V.
held his first diet at Worms.

The pope, wielding all the energies of religious fanaticism, and with immense temporal revenues at his disposal, with ecclesiastics, officers of his spiritual court, scattered all over Europe, who exercised almost a supernatural power over the minds of the benighted masses, was still perhaps the most formidable power in Europe.