Commentary on Job
Saint Gregory's Commentary on Job, or Moralia, sive Expositio in Job, sometimes called Moralia in Job or Magna Moralia (but not to be confused with Aristotle's "Magna Moralia"), was written between 578 and 595, begun when Gregory was at the court of Tiberius II at Constantinople, but finished only after he had already been in Rome for several years. It is Gregory's major work, filling some 35 books or 6 volumes, a commentary on the Book of Job entitled "An Extensive Consideration of Moral Questions".