If they teach lies, they are saying to each other, “I know God,” but they don't know him. They don't know anything. They say to each other, “I am an important person,” and they want to argue about things that aren't true. It is wrong, because they become jealous of one another and say bad words to each other. They think bad things about each other. They don't listen to God's true teaching any more, because they can't think properly. They think, “If I follow God, I will get a lot of money.”