Whether the Old Law Enjoined Fitting Precepts Concerning Rulers?
Objection 1: It would seem that the Old Law made unfitting precepts concerning rulers. Because, as the Philosopher says (Polit. iii, 4), "the ordering of the people depends mostly on the chief ruler." But the Law contains no precept relating to the institution of the chief ruler; and yet we find therein prescriptions concerning the inferior rulers: firstly (Ex. 18:21): "Provide out of all the people wise [Vulg.: 'able'] men," etc.; again (Num. 11:16): "Gather unto Me seventy men of the ancients of Israel"; and again (Deut. 1:13): "Let Me have from among you wise and understanding men," etc. Therefore the Law provided insufficiently in regard to the rulers of the people.
Obj. 2: Further, "The best gives of the best," as Plato states (Tim. ii). Now the best ordering of a state or of any nation is to be ruled by a king: because this kind of government approaches nearest in resemblance to the Divine government, whereby God rules the world from the beginning. Therefore the Law should have set a king over the people, and they should not have been allowed a choice in the matter, as indeed they were allowed (Deut. 17:14, 15): "When thou . . . shalt say: I will set a king over me . . . thou shalt set him," etc.
Obj. 3: Further, according to Matt. 12:25: "Every kingdom divided against itself shall be made desolate": a saying which was verified in the Jewish people, whose destruction was brought about by the division of the kingdom. But the Law should aim chiefly at things pertaining to the general well-being of the people. Therefore it should have forbidden the kingdom to be divided under two kings: nor should this have been introduced even by Divine authority; as we read of its being introduced by the authority of the prophet Ahias the Silonite (3 Kings 11:29, seqq.).
Obj. 4: Further, just as priests are instituted for the benefit of the people in things concerning God, as stated in Heb. 5:1; so are rulers set up for the benefit of the people in human affairs. But certain things were allotted as a means of livelihood for the priests and Levites of the Law: such as the tithes and first-fruits, and many like things. Therefore in like manner certain things should have been determined for the livelihood of the rulers of the people: the more that they were forbidden to accept presents, as is clearly stated in Ex. 23:8: "You shall not [Vulg.: 'Neither shalt thou'] take bribes, which even blind the wise, and pervert the words of the just."
Obj. 5: Further, as a kingdom is the best form of government, so is tyranny the most corrupt. But when the Lord appointed the king, He established a tyrannical law; for it is written (1 Kings 8:11): "This will be the right of the king, that shall reign over you: He will take your sons," etc. Therefore the Law made unfitting provision with regard to the institution of rulers.
On the contrary, The people of Israel is commended for the beauty of its order (Num. 24:5): "How beautiful are thy tabernacles, O Jacob, and thy tents." But the beautiful ordering of a people depends on the right establishment of its rulers. Therefore the Law made right provision for the people with regard to its rulers.
I answer that, Two points are to be observed concerning the right ordering of rulers in a state or nation. One is that all should take some share in the government: for this form of constitution ensures peace among the people, commends itself to all, and is most enduring, as stated in Polit. ii, 6. The other point is to be observed in respect of the kinds of government, or the different ways in which the constitutions are established. For whereas these differ in kind, as the Philosopher states (Polit. iii, 5), nevertheless the first place is held by the kingdom, where the power of government is vested in one; and aristocracy, which signifies government by the best, where the power of government is vested in a few. Accordingly, the best form of government is in a state or kingdom, where one is given the power to preside over all; while under him are others having governing powers: and yet a government of this kind is shared by all, both because all are eligible to govern, and because the rules are chosen by all. For this is the best form of polity, being partly kingdom, since there is one at the head of all; partly aristocracy, in so far as a number of persons are set in authority; partly democracy, i.e. government by the people, in so far as the rulers can be chosen from the people, and the people have the right to choose their rulers.
Such was the form of government established by the Divine Law. For Moses and his successors governed the people in such a way that each of them was ruler over all; so that there was a kind of kingdom. Moreover, seventy-two men were chosen, who were elders in virtue: for it is written (Deut. 1:15): "I took out of your tribes wise and honorable, and appointed them rulers": so that there was an element of aristocracy. But it was a democratical government in so far as the rulers were chosen from all the people; for it is written (Ex. 18:21): "Provide out of all the people wise [Vulg.: 'able'] men," etc.; and, again, in so far as they were chosen by the people; wherefore it is written (Deut. 1:13): "Let me have from among you wise [Vulg.: 'able'] men," etc. Consequently it is evident that the ordering of the rulers was well provided for by the Law.
Reply Obj. 1: This people was governed under the special care of God: wherefore it is written (Deut. 7:6): "The Lord thy God hath chosen thee to be His peculiar people": and this is why the Lord reserved to Himself the institution of the chief ruler. For this too did Moses pray (Num. 27:16): "May the Lord the God of the spirits of all the flesh provide a man, that may be over this multitude." Thus by God's orders Josue was set at the head in place of Moses; and we read about each of the judges who succeeded Josue that God "raised . . . up a saviour" for the people, and that "the spirit of the Lord was" in them (Judges 3:9, 10, 15). Hence the Lord did not leave the choice of a king to the people; but reserved this to Himself, as appears from Deut. 17:15: "Thou shalt set him whom the Lord thy God shall choose."