But, how do you KNOW??
Typical exchange with a fundie:
“How do you know that?”
“Because the Bible says …. (blah blah blah)…”
“No, that’s why you believe it. I’m not asking why you believe it. I am asking how do you know that what you believe is actually true? What is the authority of your source(s) and how can you validate your beliefs to know they are true?”
“Because the Bible says….”
<*sigh*>
Often in such conversations when “in the Bible” doesn’t work, they’ll cite chapter and verse, thinking that being more specific makes it more true.
You have to admit, though, that the brainwashing is pretty airtight. It’s the “Word of God,” which is the trump card beyond which no argument matters.