And what can we learn by comparing it to another ancient book mentioned in the Bible, Sefer HaYashar (The Book of the Upright)?I wrote about lost books quoted in the Hebrew Bible, including these two, in my article "Quotations from Lost Books in the Hebrew Bible: A New Translation and Introduction" in Old Testament Pseudepigrapha: More Noncanonical Scriptures, volume one (ed. Bauckham, Davila, and Panayotov; Eerdmans, 2013), pp. 673-698.
For past PaleoJudaica posts on lost ancient books in general, start here and follow the links. For other posts on lost books quoted in the Hebrew Bible, see here, here, and here, and follow the links.
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