The Bible, I think, like many others do, is a symbolic book. Several of the stories in the Bible are reminiscent of guru or wisdom thinker stories of other mythologies or cultural reference. Either way, it's a beautiful work of both fiction married to real history (in this case, the Jewish people).
Many people real religious scripture because it inspires you to think about the bigger questions. Often such questions are unanswerable, but it's fun to think about anyway for some.