Well I'm glad to hear you aren't saying it's because the Bible is bogus. There is no way to tell who is interpreting anything correctly. I've even written stuff and the next day wondered what idiot wrote it!
Like anything else, the Bible should be interpreted according to good hermeneutics --taking into account style of writing, language, circumstances and context, and so on. One can get a pretty good idea. But also like anything else, one's presuppositions and biases always make their way into the picture --it's pretty well unavoidable. Yet we (Christians) have common agreement about a great number of things the Bible teaches.
Like I've said before, too, none of us has it quite right, though, because unlike any other writings, this is written by and is about God.