well, the bible certainly offers a lot of possibilities as far as interprtations are concerned. For example it says that god made man after his own image and he was naked. From which we can deduce that god doesn't wear so much as a loincloth.
The basic problem behind all religions is that the people who first invented them had a light that radiated from them (figuratively speaking). The ones who followed later didn't have such a light but only reflected the light of their predecessors. And we all know what happens to light when it gets reflected over and over again: it gets weaker and distorted and after a while there is nothing left of it anymore.
Stories that got passed on orally for centuries and got copied again and again for 2 millennia now are bound to contain tons of errors. Everyone who told the story forgot something and added something to the rest. Everyone who copied the book made a typo, forgot a word, confused two lines. Everyone who translated it mistook a word or picked the wrong meaning when a word had several. Or they didn't know a few words and simply guessed. Thus, after so many generations of narrators, wtiters and translators, the remainder must necessarily be just fiction with a pinch of fact.