in what way is Jim's ignorance obvious through the course of the conversation/

Although Jim is versed in the Bible, his understanding of the sort of Solomon is flawed. Much of his interpretation is literal and he misses the meanings behind the story. Jim believes that Solomon is stupid for wanting to cut a child in half, because half a child isn’t good to anybody. He also thinks that Solomon was so wasteful of children because he had about eight million kids himself. If he only had two kids, he wouldn’t be so eager to go chopping them in half.