The thread is about belief. If you believe this, how can you believe this? So it doesn't matter if God actually did or didn't write the Bible.
As you know, within Christianity, there is a wide assortment of beliefs that can go together in a myriad of ways. Christian Smorgasbord
The idea that there is fiction in the Bible can rock the boat for some depending on their belief choices.
For a literalist who believes that God wrote the Bible, the idea of fiction that reads like an actual account may be seen as a lie or ruse.
Now a literalist who believes that God wrote the Bible, but understands how fiction is used to teach probably wouldn't see it as a lie or ruse.
So a literalist who doesn't believe there is fiction in the Bible and would see it as a lie or ruse is asking how can a Christian who believes there is fiction in the Bible can believe in a God that would do such a thing?
I've run into people who believe that men wrote the Bible, but don't accept that there is fiction in the Bible.
The thread is turning into a "why the originator's belief is wrong or ill conceived " instead of "why one can believe or trust in a god that uses fiction".
We shouldn't be seeing comments that suggest that maybe there is no need for salvation.
The non-literalist Christian should be showing FEY why they don't consider the Bible to be untrustworthy given that they believe it contains fiction.