You know, Jesus is pretty much the one biblical character who we can be sure didn't write any of the Bible. Still, I'd have thought the claim about Shakespeare is likely to be pretty close. I don't know where the Squeedo information comes from, but all the books listed are in copyright (if you assume that the Bible is read in a modern translation, which I should think it is, in most countries). Shakespeare is not in copyright and is therefore much more freely available. Plus of course he's taught in schools.