Throughout history the image of the non-Jew in Judaism has profoundly influenced the way in which Jews interact with non-Jews. It has also shaped the understanding that Jews have of their own identity, as it determines just what distinguishes them from the non-Jews around them. A crucial element in this is the concept of Noahide law, understood by the ancient rabbis and subsequent Jewish thinkers as incumbent upon all humankind, unlike the full 613 divine commandments of the Torah, which are incumbent on Jews alone. The approach adopted in this now classic study is to consider the history of the idea of Noahide law, and to show how the concept is relevant to practical discussions of the halakhah pertaining to non-Jews and to relations between Jews and non-Jews. The seven chapters that make up the first part of the study examine each of the Noahide laws in turn, with a view to showing their halakhic development in the rabbinic sources, in the codes, and in the responsa literature. The discussion draws primarily on classical texts by traditional commentators as they attempt to deal with living issues from the rabbinic world as equally vital concerns in their own time.The second part deals with the theory of Noahide law, concluding with a consideration of why it is an appropriate starting point for Jewish philosophy today.

Many studies written about the Jewish-Christian relationship are primarily historical overviews that focus on the Jewish background of Christianity, the separation of Christianity from Judaism, or the medieval disputations between the two faiths. This book is one of the first studies to examine the relationship from a philosophical and theological viewpoint. Carefully drawing on Jewish classical sources, Novak argues that there is actual justification for the new relationship between Judaism and Christianity from within Jewish religious tradition. He demonstrates that this new relationship is possible between religiously committed Jews and Christians without the two major impediments to dialogue: triumphalism and relativism. One of the very few books on this topic written by a Jewish theologian who speaks specifically to modern Christian concerns, it will provide the groundwork for a more serious development of Jewish-Christian dialogue in our day.