Bible publishers are not selling Bibles. What they're selling is that iconic idea of the Bible. Their value-added biblical content promises to provide answers to questions, solutions to problems, and speaks in no uncertain terms about God's plan for your life and how to live it. Adding value to the Bible almost always means adding "biblical" values that are either missing or really hard to find in the Bible itself but that provide that feeling of Bibleness so many seek.
Timothy Beal, The Rise and Fall of the Bible: The Unexpected History of an Accidental Book
bible, expectations, publishers