In the negotiations of the Augsburg Interim, he took the part of Melanchthon in first opposing it and then making concessions. This attitude incurred the enmity of the opponents of the Interim, especially after he cancelled a number of passages in the second edition of his "Psalterium" in which he had violently attacked the position of Maurice, Elector of Saxony, whom he now requested to prohibit all polemical treatises proceeding from Magdeburg, while he condemned the preachers of Torgau who were imprisoned in Wittenberg on account of their opposition to the Interim. He was even accused of accepting bribes from Maurice.