  Ibn Ezra’s thought has been located (or fitted) into three traditions. Many medieval philosophers, and opponents of philosophy as well, sensed a commonality of purpose as well as the sharing of basic doctrines between Ibn Ezra and Maimonides. Joint allegiance to Maimonides and Ibn Ezra was particularly strong in the fourteenth century. The principal vehicle for this trend of thought was the supercommentaries to Ibn Ezra, which number a few dozen. These authors were particularly impressed by the willingness of both sages to appeal to sources beyond the traditional rabbinic corpus in order to understand the biblical narratives and commandments. Rationality (in the sense of seeking rationales for Judaism, its beliefs and precepts) bonded Ibn Ezra and Maimonides, blurring the differences between the two, most notably on the important question of the legitimacy of astrology.