Laura,
"First of all, the Apostle Paul didn't know Christ."
You talk about Native Americans.
You're aware they passed down stories with vivid accuracy across generations using oral traditions, without written language. It was a cornerstone of their culture.
So why do you doubt that Paul, who lived in the same era as Christ and was surrounded by firsthand witnesses, couldn't understand and faithfully teach His message?
It's true that Paul could not have known Jesus in a physical sense, but Paul knew Jesus through direct revelation and his teachings were affirmed by people who knew Jesus personally, including apostles who had walked with Him during His ministry.
Paul wrote many letters to growing churches preaching the message of Jesus Christ and dealing with some issues facing the new churches and conflicts members were having with each other. The churches copied the letters and shared them with other churches. These letters became part of the New Testament in the bible.
Let's not act like truth only counts if it comes directly from the original messenger.