Apocalypticism is not a specialized or peripheral topic in biblical studies. It represents the central, characteristic transformation of Hebrew thought in the period of the Second Temple. It therefore constituted the worldview of Jesus, Paul, and the earliest Christians, and it is the context in which the New Testament books were written. In this volume, Frederick Murphy defines apocalypticism while discussing its origins, where it comes into play in the Hebrew Bible, and how it relates to Jesus and the New Testament.