Some Christians misunderstand God's plan for His kingdom. They want to establish it their own way rather than waiting for God to do it His way. God's way of establishing the kingdom is primarily through the preaching of the cross. But that does not seem very effective to most people. They would prefer to use force, which is the kind of thinking that leads to bloody crusades. Or they would rather entertain people into the kingdom, which is the kind of thinking that leads to man-centered worship.