Some parts of the Bible are hard to match with science; others are hard to match with Christian morality. The Catholic Church traditionally speaks of "four sens

Some parts of the Bible are hard to match with science; others are hard to match with Christian morality. The Catholic Church traditionally speaks of "four senses of Scripture", and advises using reason and observation to rule out readings that can't possibly be true; so, for example, the passage where God tells Saul to exterminate the Amelekites should be read as an allegorical instruction to destroy not just sin, but also habits that lead you to sin -- since it's not particularly difficult to prove that genocide is wrong. (That instruction probably didn't happen, since two chapters later David's raiding the Amalekites just as if they weren't exterminated at all; but if it did happen, well, I wonder who Saul was talking to. The Devil likes to pass himself off as an angel of light; the test of an interaction with a supernatural being is what the said being asks you to do.) And if you really want to embarrass a fundamentalist, talk about how you're a Creationist, and then start talking about the second Creation narrative -- the one that begins with "the spirit of God moving over the waters". Or talk about how you want to put the Ten Commandments on the courthouse lawn, and then reveal that you mean the Ritual Commandments (https://en.wikipedia.org/wiki/Ritual_Decalogue https://en.wikipedia.org/wiki/Ritual_Decalogue). Or read the Books of Samuel, which are obviously two different narratives (with quite different outlooks on life) interleaved with each other...