More on the authors of various books, including how Joshua wrote his own book and also the last 8 verses of Deuteronomy. Unless Moses himself wrote them. But they record events after and including his death - as do other authors record their own deaths (or other people wrote those verses and onward). Plus, the authorship of the Book of Job, and discussion on who Job was, historically. Note that questions of authorship and how the books of the Bible were organized and were open, welcoming those with sufficient background. Job is represented as a prophet for all of the nations of the world (and maybe he wasn't Jewish). Job's suffering is presented here with some rationality - including several theories as to whom he was hoping for, at the very last. Note also the Gemara's tolerance for the multiple views.