 Some modern scholars ascribe the story of the “Oath of Heraclius” to the realm of legend doubting that Heraclius ever made such a promise, instead ascribing this as a product of later apologists.In atonement for the violation of the emperor's oath to the Jews, the monks are said to have pledged themselves to a yearly fast, which is still observed by the Copts, called the Fast of Heraclius.Jews were expelled from Jerusalem and were not allowed to settle within a three-mile radius.