If you place your faith in history, you will lose. It is the truth that sets one free and these narratives are packed full of eternal truths. You're welcome to view them as history, but even those who wrote them didn't see it that way.I think you are misreading numbers to make the serpents metaphorical or spiritual. That is not what the Bible is portrarying. Do you think the entire story of the Jews escape from Egypt is a metaphor, but never literally took place?