1. LAW, in it's most general and comprehensive sense, signifies a rule of action; and is applied indiscriminately to all kinds of action, whether animate, or inanimate, rational or irrational. Thus we say, the laws of motion, of gravitation, of optics, or mechanics, as well as the laws of nature and of nations. And it is that rule of action, which is prescribed by some superior, and which the inferior is bound to obey.
2. THUS when the Supreme Being formed the universe, and created matter out of nothing, he impressed certain principles upon that matter, from which it can never depart, and without which it would cease to be. When he put that matter into motion, he established certain laws of motion, to which all moveable bodies must conform. And, to descend from the greatest operations to the smallest, when a workman forms a clock, or other piece of mechanism, he establishes at his own pleasure certain arbitrary laws for it's direction; as that the hand shall describe a given space in a given time; to which law as long as the work conforms, so long it continues in perfection, and answer the end of it's formation…
3. But laws, in their more confined sense, and in which it is our present business to consider them, denote the rules, not of action in general, but of human action or conduct: that is, the precepts by which man, the noblest of all sublunary beings, a creature endowed with both reason and freewill, is commanded to make use of those faculties in the general regulation of his behavior.
4. MAN, considered as a creature, must necessarily be subject to the laws of his creator, for he is entirely a dependent being. A being, independent of any other, has no rule to pursue, but such as he prescribes to himself; but a state of dependence will inevitably oblige the inferior to take the will of him, on whom he depends, as the rule of his conduct: not indeed in every particular, but in all those points wherein his dependence consists. This principle therefore has more or less extent and effect, in proportion as the superiority of the one and the dependence of the other is greater or less, absolute or limited. And consequently as man depends absolutely upon his maker for every thing, it is necessary that he should in all points conform to his maker's will.
5. THIS will of his maker is called the law of nature. For as God, when he created matter, and endued it with a principle of mobility, established certain rules for the perpetual direction of that motion; so, when he created man, and endued him with freewill to conduct himself in all parts of life, he laid down certain immutable laws of human nature, whereby that freewill is in some degree regulated and restrained, and gave him also the faculty of reason to discover the purport of those laws.
6. CONSIDERING the creator only as a being of infinite power, he was able unquestionably to have prescribed whatever laws he pleased to his creature, man, however unjust or severe. But as he is also a being of infinite wisdom, he has laid down only such laws as were founded in those relations of justice that existed in the nature of things antecedent to any positive precept. These are the eternal, immutable laws of good and evil, to which the creator himself in all his dispensations conforms; and which he has enabled human reason to discover, so far as they are necessary for the conduct of human actions. Such among others are these principles: that we should live honestly, should hurt nobody, and should render to every one it's due…
7. BUT if the discovery of these first principles of the law of nature depended only upon the due exertion of right reason, and could not otherwise be attained than by a chain of metaphysical disquisitions, mankind would have wanted some inducement to have quickened their inquiries, and the greater part of the world would have rested content in mental indolence, and ignorance it's inseparable companion. As therefore the creator is a being, not only of infinite power, and wisdom, but also of infinite goodness, he has been pleased so to contrive the constitution and frame of humanity, that we should want no other prompter to enquire after and pursue the rule of right, but only our own self-love, that universal principle of action. For he has so intimately connected, so inseparably interwoven the laws of eternal justice with the happiness of each individual, that the latter cannot be attained but by observing the former; and, if the former be punctually obeyed, it cannot but induce the latter. In consequence of which mutual connection of justice and human felicity, he has not perplexed the law of nature with a multitude of abstracted rules and precepts, referring merely to the fitness or unfitness of things, as some have vainly surmised; but has graciously reduced the rule of obedience to this one paternal precept, that man should “pursue his own happiness.” This is the foundation of what we call ethics, or natural law. For the several articles into which it is branched in our systems, amount to no more than demonstrating, that this or that action tends to man's real happiness, and therefore very justly concluding that the performance of it is a part of the law of nature; or, on the other hand, that this or that action is destructive of man's real happiness, and therefore that the law of nature forbids it.
8. THIS law of nature, being co-eval with mankind and dictated by God himself, is of course superior in obligation to any other. It is binding over all the globe, in all countries, and at all times: no human laws are of any validity, if contrary to this; and such of them as are valid derive all their force, and all their authority, mediately or immediately, from this original.
9. BUT in order to apply this to the particular exigencies of each individual, it is still necessary to have recourse to reason; whose office it is to discover, as was before observed, what the law of nature directs in every circumstance of life; by considering, what method will tend the most effectually to our own substantial happiness. And if our reason were always, as in our first ancestor before his transgression, clear and perfect, unruffled by passions, unclouded by prejudice, unimpaired by disease or intemperance, the task would be pleasant and easy; we should need no other guide but this. But every man now finds the contrary in his own experience; that his reason is corrupt, and his understanding full of ignorance and error.
10. THIS has given manifold occasion for the benign interposition of divine providence; which, in compassion to the frailty, the imperfection, and the blindness of human reason, hath been pleased, at sundry times and in divers manners, to discover and enforce it's laws by an immediate and direct revelation. The doctrines thus delivered we call the revealed or divine law, and they are to be found only in the Holy Scriptures. These precepts, when revealed, are found upon comparison to be really a part of the original law of nature, as they tend in all their consequences to man's felicity. But we are not from thence to conclude that the knowledge of these truths was attainable by reason, in it’s present corrupted state; since we find that, until they were revealed, they were hid from the wisdom of ages. As then the moral precepts of this law are indeed of the fame original with those of the law of nature, so their intrinsic obligation is of equal strength and perpetuity. Yet undoubtedly the revealed law is (humanly speaking) of infinitely more authority than what we generally call the natural law. Because one is the law of nature, expressly declared so to be by God himself; the other is only what, by the assistance of human reason, we imagine to be that law. If we could be as certain of the latter as we are of the former, both would have an equal authority; but, till then, they can never be put in any competition together.
11. UPON these two foundations, the Law of Nature and the Law of Revelation, depend all human laws; that is to say, no human laws should be suffered to contradict these. There is, it is true, a great number of indifferent points, in which both the divine law and the natural leave a man at his own liberty; but which are found necessary for the benefit of society to be restrained within certain limits. And herein it is that human laws have their greatest force and efficacy; for, with regard to such points as are not indifferent, human laws are only declaratory of, and act in subordination to, the former. To instance in the case of murder: this is expressly forbidden by the divine, and demonstrably by the natural law; and from these prohibitions arise the true unlawfulness of this crime…If any human law should allow or enjoin us to commit it, we are bound to transgress that human law, or else we must offend both the natural and the divine…
12. IF man were to live in a state of nature, unconnected with other individuals, there would be no occasion for any other laws, than the Law of Nature, and the Law of God. Neither could any other law possibly exist; for a law always supposes some superior who is to make it; and in a state of nature we are all equal, without any other superior but him who is the author of our being. But man was formed for society; and, as is demonstrated by the writers on this subject, is neither capable of living alone, nor indeed has the courage to do it. However, as it is impossible for the whole race of mankind to be united in one great society, they must necessarily divide into many; and form separate states, commonwealths, and nations; entirely independent of each other, and yet liable to a mutual intercourse. Hence arises a third kind of law to regulate this mutual intercourse, called “the law of nations;” which, as none of these states will acknowledge a superiority in the other, cannot be dictated by either; but depends entirely upon the rules of natural law, or upon mutual compacts, treaties, leagues, and agreements between these several communities: in the construction also of which compacts we have no other rule to resort to, but the law of nature; being the only one to which both communities are equally subject…
THUS much I thought it necessary to premise concerning the law of nature, the revealed law, and the law of nations…