Human beings are naturally very religious. Instinctively, most people believe that there must be someone or something bigger than them and that they are accountable. The big question is "What must we do to please God?" In one way, that shows we are appealing to a higher authority, because we are asking to know the rules. But in another way, it is an appeal to human pride: assuming that we are good enough and strong enough to do the right thing all the time, and never do what is wrong.