First, I'm one of the strongest (or pig headed depending on your position) separation proponents you'll find on this forum. That said, the bible and more importantly the history surrounding it has incredible historical significance to western civilization. As long as it is taught in that context and in an objective way, it would be a valuable addition to the curriculum.
Actually I think the SCOTUS nailed it with "the Bible is worthy of study for its literary and historic qualities'' if ``presented objectively as part of a secular program of education."
I have not seen this book in person obviously so I can't sign off on this specific example, I'm just speaking generalities.
That's the way the tolerant, open-minded leftists see it - no?