 He himself, robed in white, stood behind the curtain, and the light brought out in full relief the gilt letters of the Tetragrammaton, which he had placed on his breast.The spectators were disposed to believe in a miracle, when someone present, (Jacob Emden believes it to be the rabbi), pulled down the curtain and exposed the fraud.Prossnitz was excommunicated by the rabbis of Moravia, among them the "Landrabbiner" David Oppenheim.