noon
`` Rabbi '' -- and to his wide mouth came the sneer of one propounding a riddle already solved -- `` it is not meet , is it , to thresh on the Sabbath day ? Yet since you permit your followers to do so , how are we to distinguish between what is lawful and what is not ? '' The Master raised his eyes . The dawn was in them , high noon as well . `` Show yourself a tried money-changer . Choose that which is good metal , reject that which is bad . '' Simon blinked as at a sudden light .