16. Unity and diversity of laws

What I have said will become plain if we attend, as we ought, to two things connected with all laws, viz., the enactment of the law, and the equity on which the enactment is founded and rests. Equity, as it is natural, cannot but be the same in all, and therefore ought to be proposed by all laws, according to the nature of the thing enacted. As constitutions have some circumstances on which they partly depend, there is nothing to prevent their diversity, provided they all alike aim at equity as their end.

Now, as it is evident that the law of God which we call moral, is nothing else than the testimony of natural law, and of that conscience which God has engraven on the minds of men, the whole of this equity of which we now speak is prescribed in it. Hence it alone ought to be the aim, the rule, and the end of all laws.

Wherever laws are formed after this rule, directed to this aim, and restricted to this end, there is no reason why they should be disapproved by us, however much they may differ from the Jewish law, or from each other, (August. de Civil. Dei, Lib. 19 c. 17.)

The law of God forbids to steal. The punishment appointed for theft in the civil polity of the Jews may be seen in Exodus 22. Very ancient laws of other nations punished theft by exacting the double of what was stolen, while subsequent laws made a distinction between theft manifest and not manifest. Other laws went the length of punishing with exile, or with branding, while others made the punishment capital. Among the Jews, the punishment of the false witness was to "do unto him as he had thought to have done with his brothers" (Deut. 19: 19.) In some countries, the punishment is infamy, in others, hanging; in others, crucifixion. All laws alike avenge murder with blood, but the kinds of death are different. In some countries, adultery was punished more severely, in others more leniently. Yet we see that amid this diversity they all tend to the same end. For they all with one mouth declare against those crimes which are condemned by the eternal law at God, viz., murder, theft, adultery, and false witness; though they agree not as to the mode of punishment. This is not necessary, nor even expedient. There may be a country which, if murder were not visited with fearful punishments, would instantly become a prey to robbery and slaughter. There may be an age requiring that the severity of punishments should be increased. If the state is in a troubled condition, those things from which disturbances usually arise must be corrected by new edicts. In time of war, civilisation would disappear amid the noise of arms, were not men overawed by an unwonted severity of punishment. In sterility, in pestilence, were not stricter discipline employed, all things would grow worse. One nation might be more prone to a particular vice, were it not most severely repressed. How malignant were it, and invidious of the public good, to be offended at this diversity, which is admirably adapted to retain the observance of the divine law.

The allegation, that insult is offered to the law of God enacted by Moses, where it is abrogated and other new laws are preferred to it, is most absurd. Others are not preferred when they are more approved, not absolutely, but from regard to time and place, and the condition of the people, or when those things are abrogated which were never enacted for us. The Lord did not deliver it by the hand of Moses to be promulgated in all countries, and to be everywhere enforced; but having taken the Jewish nation under his special care, patronage, and guardianship, he was pleased to be specially its legislator, and as became a wise legislator, he had special regard to it in enacting laws.