On your second paragraph, of course it does, is it supposed to break the fourth wall? Stories may be stories, but their message get's lost if you tell it when it's over. The bible is describing "occurrences" that match with their message, and the stories are trying to convey an important message. They won't put a TL;DR at the end with "Fictional story, peeps, just love each other m'kay." It supposed to convey a seriousness, and the stories are trying to convey a message that is important for christians. You wouldn't take your bible serious if it said halfway through, "Yeah, ehm, Jesus broke bread and then he fed like 200 people. It didn't exactly go that way, but, you know, it's the gist of it." If you do that, nobody would take your book seriously as the word of God. That's why the bible tries to convey it's stories as fact.