Discussion of early Jewish monotheism has focused on its origins in earlier Israelite religion, while its development in late prophetic and early apocalyptic literature has received little attention. Yet the reflections of the concept of monotheism in these works are much more diverse than is generally recognized. This literature reflects a lively debate over the implications of Yhwh's supremacy, which extend to the full range of religious and socio-political experience. The authors of this volume explore that diversity by focusing on how particular texts and themes embody and shape the emerging concept of monotheism. Tackling issues ranging from divine violence to dualism, international relations to idolatry, these studies not only emphasize the diverse ways in which Yhwh's supremacy is portrayed in late prophetic and early apocalyptic literature, but also illustrate the necessity of adopting a range of methodological approaches to the problem.