omnipotence is hidden. It functions in history ‘by means of its opposite’ (sub contrario). His power rests, disguised, in the Cross. In Zwingli’s theology, the Devil has already been deposed and overcome; he has been, as it were, de-mythologized. Luther believes that the Devil rules over his world-wide empire with all his might and violence until the last day of the End Time: the Devil is the rex saeculi, the king of this world. From Luther’s perspective, Zwingli was ensnared in the causal chain