1. Chronik 27:1

Now the children of Israel after their number,.... Not the whole body of the people, but the militia of the nation; for after the account of the division of the priests and Levites into courses, follows an account of the militia of the nation, being divided also into monthly courses; which, though done in the beginning of David's reign, as Kimchi and Jarchi observe, yet is here related; and that it was so soon is clear from the instance of Asahel, who was killed while David was king in Hebron, Ch1 27:7 to wit: the chief fathers; the chief men in the tribes, the princes of them, not the natural fathers of the soldiers in each course, as a learned man suggests (i): since it can never be thought that such a number sprung from those as made a course of 24,000; for they are distinct from the captains and officers after mentioned, under which the soldiers were; besides, why should they be called "chief fathers?" these, no doubt, were the general officers or princes, under which the captains and inferior officers were: and captains of thousands and hundreds; in the several tribes: and their officers; that were under them: that served the king in any matter of the courses, which came in and went out month by month, throughout all the months of the year; by which it appears that the militia of the kingdom was divided into twelve courses, which served each month by turns; when one went out another came in; by which means the king was well supported and guarded, and had an army at once at command upon any insurrection or war that might arise; and each course serving but one month in a year, it was no great burden upon them, even if they maintained themselves, since they were at leisure, the other eleven months, to attend to their business; and especially if it was, as Jarchi obser…

We have here an account of the regulation of the militia of the kingdom. David was himself a man of war, and had done great things with the sword; he had brought into the field great armies. Now here we are told how he marshalled them when God had given him rest from all his enemies. He did not keep them all together, for that would have been a hardship on them and the country; yet he did not disband and disperse them all, for then he would have left his kingdom naked, and his people would have forgotten the arts of war, wherein they had been instructed. He therefore contrived to keep up a constant force, and yet not a standing army. The model is very prudent. 1. He kept up 24,000 constantly in arms, I suppose in a body, and disciplined, in one part or other of the kingdom, the freeholders carrying their own arms and bearing their own charges while they were up. This was a sufficient strength for the securing of the public peace and safety. Those that are Israelites indeed must learn war; for we have enemies to grapple with, whom we are concerned constantly to stand upon our guard against. 2. He changed them every month; so that the whole number of the militia amounted to 288,000, perhaps about a fifth part of the able men of the kingdom. By being thus distributed into twelve courses, they were all instructed in, and accustomed to, military exercises; and yet none were compelled to be in service, and at expenses, above one month in the year (which they might very well afford), unless upon extraordinary occasions, and then they might all be got together quickly. It is the wisdom of governors, and much their praise, while they provide for the public safety, to contrive how to make it effectual and yet easy, and as little as possible burdensome to the people. 3. Every cour…

27:1-15 David’s reserve army was organized into twelve divisions, each serving on active duty one month each year. Their duties probably included protecting the borders, policing, keeping order in conquered territories, manning fortresses, and tending military equipment (horses and chariots). The divisions were not related to Israel’s tribal structure; each division contained individuals from various tribes, indicating the integration of the kingdom.