oracles from the original prophet, but much material that was clearly composed after the Babylonian exile. (Accordingly, Isaiah 40–66 is called Second, or Deutero-, Isaiah, and chapters 56–66 are sometimes further distinguished as Third, or Trito-, Isaiah, although, as far as we know, there was only one prophet named Isaiah.) The books of the prophets were all edited in the Second Temple period, although we cannot be sure just when. Most of the books in the Writings were composed in the postexilic