Book IV, Chapter VIII: CIVIL RELIGION
Finally, when, along with their empire, the Romans had spread their cult and their gods, and had themselves often adopted those of the vanquished, by granting to both alike the rights of the city, the peoples of that vast empire insensibly found themselves with multitudes of gods and cults, everywhere almost the same; and thus paganism throughout the known world finally came to be one and the same religion.
It was in these circumstances that Jesus came to set up on earth a spiritual kingdom, which, by separating the theological from the political system, made the State no longer one, and brought about the internal divisions which have never ceased to trouble Christian peoples. As the new idea of a kingdom of the other world could never have occurred to pagans, they always looked on the Christians as really rebels, who, while feigning to submit, were only waiting for the chance to make themselves independent and their masters, and to usurp by guile the authority they pretended in their weakness to respect. This was the cause of the persecutions.
Religion, considered in relation to society, which is either general or particular, may also be divided into two kinds: the religion of man, and that of the citizen. The first, which has neither temples, nor altars, nor rites, and is confined to the purely internal cult of the supreme God and the eternal obligations of morality, is the religion of the Gospel pure and simple, the true theism, what may be called natural divine right or law. The other, which is codified in a single country, gives it its gods, its own tutelary patrons; it has its dogmas, its rites, and its external cult prescribed by law; outside the single nation that follows it, all the world is in its sight infidel, foreign and barbarous; the duties and rights of man extend for it only as far as its own altars. Of this kind were all the religions of early peoples, which we may define as civil or positive divine right or law.
There remains therefore the religion of man or Christianity—not the Christianity of to-day, but that of the Gospel, which is entirely different. By means of this holy, sublime, and real religion all men, being children of one God, recognise one another as brothers, and the society that unites them is not dissolved even at death.
But this religion, having no particular relation to the body politic, leaves the laws in possession of the force they have in themselves without making any addition to it; and thus one of the great bonds that unite society considered in severalty fails to operate. Nay, more, so far from binding the hearts of the citizens to the State, it has the effect of taking them away from all earthly things. I know of nothing more contrary to the social spirit.
There is therefore a purely civil profession of faith of which the Sovereign should fix the articles, not exactly as religious dogmas, but as social sentiments without which a man cannot be a good citizen or a faithful subject.[6] While it can compel no one to believe them, it can banish from the State whoever does not believe them—it can banish him, not for impiety, but as an anti-social being, incapable of truly loving the laws and justice, and of sacrificing, at need, his life to his duty. If any one, after publicly recognising these dogmas, behaves as if he does not believe them, let him be punished by death: he has committed the worst of all crimes, that of lying before the law.