Assuming you could know for sure whether the "Bible" has indeed been produced by that God, and is not just some pretender book. We have quite a few contenders for that title even in our non-counterfactual world after all.
Knowing for sure is not possible: even if there was only a 0.01 chance God wrote it, you'd still want to read it, given the 1) low cost of reading and 2) high potential payoff. Reading the bible would probably also be helpful in establishing authorship.
3rd May 2014: I no longer hold the ideas in this article. IsaacLewis2013 had fallen into something of an affective death spiral around 'evolution' and self-organising systems. That said, I do still hold with my statement at the time that this is 'as one interesting framework for viewing such topics'.
I've recently been reading up on some of the old ideas from cybernetics and self-organisation, in particular Miller's Living Systems theory, and writing up my thoughts on my blog.
My latest article might be of interest to LessWrongers - I write about the relationship between life, purpose, and intelligence.
My thesis is basically: