[quote=Host]
If you can take a whole book as a metaphor, you have no reason to believe Jesus died for our sins, or that anyone is going to Hell. Why even believe in sin if it's all just a metaphor? Christianity is different than every other religion because it's meant to be taken literally and as absolute truth!
[/quote]

We of course do have figurative speech in places like the Psalms. It's not all absolutely literal, but we have criteria that uses the rest of the Bible to determine what a certain part of the Bible is, such that we don't elevate ourselves above God in interpretation.