I think we all forget that there WAS NO TECHNOLOGY in bible times. The world was strictly ANALOG.
The thinking and speaking were analog.
No recordings, no iPhone, cassettes, videos, film, or even floppy discs :)
If you heard something interesting or stunning from the man on the street YOU EITHER BELIEVED IT or IGNORED IT.
If you believed something you told YOUR VERSION to the next guy.
Surely that is a shaky foundation for us to make claims of PROOF TEXT accuracy.
We don't even have to claim the bible is NOT inspired. We just have to make the following very reasonable statement:
Nobody knows which texts in the bible may be inspired and which ones are totally bogus.
You can't ask people to lay their lives on the line with odds like that.