I grew up in Appalachia (Eastern Tennessee and Kentucky). There are a lot of churches there full of uneducated people who insist that the King James version of the Bible is the only one that has authority. Some are semi-literate, some completely illiterate. Both of my grandfathers were country preachers. My mom's dad finished third grade and went no further in school. He read the Bible aloud constantly. He thought "without natural affection" meant wearing make-up, and pronounced "lucre" as "looser."
However, the people I knew back then, though they were in the backwoods and didn't have formal education, had a purity of heart and certainly had their priorities straight. It was a struggle to survive, so they knew how to grow crops without modern machinery, how to preserve food, how to stop pain without a doctor, and how to endure hardship.
Some of their wisdom is preserved in books and on film: The Dollmaker by Harriet Arnow, Coal Miner's Daughter by Loretta Lynn, and others I cannot call to mind right now.
Regards,
SandraC