The remaining notices of David's administration in the passage before us are simply to the effect that the government consisted of various departments, and that each department had an officer at its head. 1. There was the military department, at the head of which was Joab, or rather he was over "the host"--the great muster of the people for military purposes. A more select body, "the Cherethites and the Pelethites," seems to have formed a bodyguard for the king, or a band of household troops, and was under a separate commander. The troops forming "the host" were divided into twelve courses of twenty-four thousand each, regularly officered, and for one month of the year the officers of one of the courses, and probably the people, or some of them, attended on the king at Jerusalem (1 Chron. xxvii. 1). Of the most distinguished of his soldiers who excelled in feats of personal valour, David seems to have formed a legion of honour, conspicuous among whom were the thirty honourable, and the three who excelled in honour (2 Sam. xxiii. 28). It is certain that whatever extra power could be given by careful organization to the fighting force of the country, the army of Israel under David possessed it in the fullest degree. 2. There was the civil department, at the head of which were Jehoshaphat the recorder and Seraiah the scribe or secretary. While these were in attendance on David at Jerusalem, they did not supersede the ordinary home rule of the tribes of Israel. Each tribe had still its prince or ruler, and continued, under a general superintendence from the king, to conduct its local affairs (1 Chron. xxvii. 16-22). The supreme council of the nation continued to assemble on occasions of great national importance (1 Chron. xxviii. 1), and though its influence could not have been so great as it was before the institution of royalty, it continued an integral element of the constitution, and in the time of Rehoboam, through its influence and organization (1 Kings xii. 3, 16), the kingdom of the ten tribes was set up, almost without a struggle (1 Chron. xxiii. 4). This home-rule system, besides interesting the people greatly in the prosperity of the country, was a great check against the abuse of the royal authority; and it is a proof that the confidence of Rehoboam in the stability of his government, confirmed perhaps by a superstitious view of that promise to David, must have been an absolute infatuation, the product of utter inexperience on his part, and of the most foolish counsel ever tendered by professional advisers.