Barny is confident in God's word. See the troubles he goes through as others try to destroy his Bible!
Barny wants to measure all things against what the Bible says. He is wise enough to apply scripture to all kinds of situations, even the most difficult.
Barney the Owl knows that if he lives his life by The book he has, it will keep him from trouble. And he certainly knows better than to change any of the words in his book, too. In this story, Barney is saved from death and punishment by trusting in God.