Moral relativism is more easily understood in comparison to moral absolutism. Absolutism claims that morality relies on universal principles (natural law, conscience). Christian absolutists believe that God is the ultimate source of our common morality, and that it is, therefore, as unchanging as He is. Moral relativism asserts that morality is not based on any absolute standard. Rather, ethical truths depend on variables such as the situation, culture, one's feelings, etc.