The belief of Jefferson, and of his fellow Deist-rationalists, that religion is a useful device for human solidarity, social cohesion, and rule-following behavior is in no way evidence of a Jeffersonian belief (or that of any other sons of the Enlightenment among the founding fathers)in Christianity, or in any other organized religion. That religion is useful (a claim that can be justified, if one ignores its well-known inutilities) is no evidence that it is true.