Heidegger's Bible Handbook: Job: Place among the Poetic Books
1. Among the Poetic Books, Job obtains the first place.
We proceed to the Psalms or Poetic Books. Among them אִיּוֹב/Job, or the narration of the admirable patience of Job and its happy outcome, undoubtedly obtains the first place on account of its antiquity, whether of history, or writing, or both.
 See James 5:11.