At Wittenberg it was now demanded, not without violence, that monasticism should be abolished, and that the mass and the Lord's Supper should be changed in conformity with the institution of Christ. It seemed as if here, in the place of Luther, who had gone before with the simple testimony of the Word and doctrine, two other men were now to step in as practical and energetic Reformers. One of them was Luther's old colleague, Carlstadt, who had returned in July from a short visit to Copenhagen, whither the King of Denmark had invited him to promote the new evangelical theology at the university, but had soon again dismissed him, and who now assumed the lead at Wittenberg with a passionate and ambitious, but undeterminate zeal. The other was the Augustine monk, Gabriel Zwilling, who had introduced himself to notice as a fiery preacher in the convent church, and in spite of his unattractive appearance and weak voice had drawn together a large congregation from the town and university, and fascinated them with his eloquence. A young Silesian wrote home from the university of Wittenberg about him, saying: 'God has raised up for us another prophet; many call him a second Luther. Melancthon is never absent when he preaches.' For the clergy Carlstadt sought, by a perverse interpretation of Scripture, to make the married state into a law. Only married men were to be appointed to offices in the Church. For monks and nuns he claimed the liberty of renouncing their cloistered and celibate life, if they found its moral requirements insupportable; but the biblical evidence that he adduced in support of this doctrine was unhappily chosen; and he still declared the renunciation of vows to be a sin, though justified by the avoidance thereby of a still greater sin, that of unchastity in monastic life. Luther had required that at the Lord's Supper the cup, in accordance with the original institution of Christ, should be given to the laity. Carlstadt and Zwilling, however, wished to make it a sin for a person to partake of the Communion without the cup being given to the communicants. Other changes also were now demanded in the mode of administering the elements, conformably with the Holy Supper held by Jesus Himself with His twelve disciples. Zwilling would have twelve communicants at a time partake of the bread and wine. It was further insisted that, like as at ordinary meals, the elements should be given into the hand of each individual to partake of, and not put into his mouth by the priest. The sacrifice of the mass Zwilling would abolish altogether, but Carlstadt thought it necessary, in dealing with so important a feature of the old form of worship, to proceed with caution.