The works of the Talmudic Midrashic literature are of the first importance. Covering the period from the second to the fourteenth century, they contain the major part of the Jewish legendary material. Akin to this in content if not always in form is that derived from the Targumim, of which the oldest versions were produced not earlier than the fourth century, and the most recent not later than the tenth. The Midrashic literature has been preserved only in fragmentary form. Many Haggadot not found in our existing collections are quoted by the authors of the Middle Ages. Accordingly, a not inconsiderable number of the legends here printed are taken from medieval Bible commentators and homilists. I was fortunate in being able to avail myself also of fragments of Midrashim of which only manuscript copies are extant. The works of the older Kabbalah are likewise treasuries of quotations from lost Midrashim, and it was among the Kabbalists, and later among the Hasidim, that new legends arose. The literatures produced in these two circles are therefore of great importance for the present purpose. Furthermore, Jewish legends can be culled not from the writings of the Synagogue alone; they appear also in those of the Church. Certain Jewish works repudiated by the Synagogue were accepted and mothered by the Church. This is the literature usually denominated apocryphal-pseudepigraphic. From the point of view of legends, the apocryphal books are of subordinate importance, while the pseudepigrapha are of fundamental value. Even quantitatively the latter are an imposing mass. Besides the Greek writings of the Hellenist Jews, they contain Latin, Syrian, Ethiopic, Aramean, Arabic, Persian, and Old Slavic products translated directly or indirectly from Jewish works of Palestinian or Hellenistic origin. The use of these pseudepigrapha requires great caution. Nearly all of them are embellished with Christian interpolations, and in some cases the inserted portions have choked the original form so completely that it is impossible to determine at first sight whether a Jewish or a Christian legend is under examination. I believe, however, that the pseudepigraphic material made use of by me is Jewish beyond the cavil of a doubt, and therefore it could not have been left out of account in a work like the present. However, in the appreciation of Jewish Legends, it is the Rabbinic writers that should form the point of departure, and not the pseudepigrapha. The former represent the main stream of Jewish thought and feeling, the latter only an undercurrent. If the Synagogue cast out the pseudepigrapha, and the Church adopted them with a great show of favor, these respective attitudes were not determined arbitrarily or by chance. The pseudepigrapha originated in circles that harbored the germs from which Christianity developed later on. The Church could thus appropriate them as her own with just reason.