Is that they believe everything that their preachers say, and nothing that anyone else does. (Trust issues much?) It's called brainwashing. (You see what you do, because it's what he wants you to.) As if one silly antiquated book could hold all the answers. As if one person's interpretation of it could be more valid than another's.
There is more than one mind. There is more than one book. There's more than one set of eyes, so take another look.