Have you ever read the Bible?
You can argue that people don't adhere to it, that it's symbolic, that certain parts are outdated and are therefore legitimately subject to a modern reinterpretation, but arguing that the Bible itself, as it is written, says you should be a good person or that it discourages discrimination is just silly (except in the vacuous sense that it defines what a good person is). Again, your interpretation of it may lead you in another direction, but what it literally says (not in the sense of "what is its sacred intended message", which is subject to the above qualifications, but in the sense of "what would the average take as the meaning of the written words") is pretty hard to defend in this way.