> But the bible itself isn't a good philosophy book

Well I just interpret "philosophy" more broadly. Before we can act, and indeed before we can think, we must somehow plant our feet - we can't stand "nowhere" in a sense. And philosophy is just the search for a good place to stand, a "will to locate oneself" perhaps. And if we habitually stand in the same place, we're religious! We can no more be beyond (super) philosophy than we can be beyond (super) religion than we can be beyond (super) man. In this sense, the authors of the books of the bible are philosophers like the rest of us. If it's dissimilar in style to Plato, Aristotle and so on, there you go. So when you say it isn't a good philosophy book, to my mind you're just saying you don't like the philosophy it evinces, which of course is your prerogative.

While the Bible as a whole isn't a philosophy book, it does contain a few. Books like the Proverbs of Solomon, Ecclesiastes, the Book of Job, etc. are what we could call "practical philosophy."