Lamb: The Gospel According to Biff, Christ's Childhood Pal - Christopher Moore
I like Christopher Moore and I liked Lamb but it is the kind of book that I would be highly unlikely to recommend because of the subject matter; it too easily offends. That aside, Moore is a very intelligent man with fair insight; it is just that you have to be able to get past the bawdy character of his writing in order to see beneath the surface--and there is a lot there.