David took great numbers of the Moabites prisoners of war, and made them lie down on the ground, and then divided them by a measuring line into three parts, putting two-thirds to death, and saving alive one-third. The cause of the war with the Moabites, who had been very friendly with David 1 Samuel 22:3-4, and of this severe treatment, is not known. But it seems likely, from the tone of Psalm 60:1-12 that David had met with some temporary reverse in his Syrian wars, and that the Moabites and Edomites had treacherously taken advantage of it, and perhaps tried to cut off his retreat.

And measured them with a line - even with two lines - It has been generally conjectured that David, after he had conquered Moab, consigned two-thirds of the inhabitants to the sword; but I think the text will bear a meaning much more reputable to that king. The first clause of the verse seems to determine the sense; he measured them with a line, casting them down to the ground - to put to death, and with one line to keep alive. Death seems here to be referred to the cities by way of metaphor; and, from this view of the subject we may conclude that two-thirds of the cities, that is, the strong places of Moab, were erased; and not having strong places to trust to, the text adds, So the Moabites became David's servants, and brought gifts, i.e., were obliged to pay tribute. The word line may mean the same here as our rod, i.e., the instrument by which land is measured. There are various opinions on this verse, with which I shall not trouble the reader. Much may be seen in Calmet and Dodd.

And he smote Moab,.... He next went against that, and invaded it, the people of it being always troublesome and distressing to the children of Israel; and though the king of it had shown some favour to David, yet it was when he considered him as an enemy to Saul, and Saul to him; but things having taken a different turn, his and his people's enmity against David and his people appeared; wherefore he went and fought them, and made them his subjects, whereby was fulfilled the prophecy of Balaam, Numbers 24:17; as it referred to David:

and measured them with a line: either their country and fields, to distribute among his people, or rather the soldiers he took prisoners; which, as Procopius Gazaeus says, were so numerous that they could not be told, and therefore they were ordered to lie prostrate on the ground, and they were measured with a line, as it follows:

casting them down to the ground; or ordering them to lie down; though some understand this of casting down their cities, towers, and strong holds, and levelling them with the ground:

even with two lines measured he; with one, so it may be supplied, as the Vulgate Latin:

to put to death, and with one full line, to keep alive; that is, in measuring them with his lines, he divided them into two parts, one he put to death, and the other, the full line, which contained the most, he saved alive; though it seems according to our version, and so most understand it, that David slew two thirds, and saved one, and so Josephus (e). This must be understood of the army of the Moabites that fell into his hands, so Josephus, who persisted and refused to submit, not of all the inhabitants of the land. The Jews say (f), that the reason of this severe treatment of them was because they slew the father, and mother and brethren of David, whom he left to the care and custody of the king of Moab, when he fled from Saul, see 1 Samuel 22:3; since after that they are heard no more of; though it should rather be imputed to their enmity against the people of Israel. The phrase of "meting out the valley of Succoth" seems to be an allusion to this fact, Psalm 60:6, the psalm being written on occasion of the victories here related:

and so the Moabites became David's servants; the inhabitants of the land who were left in it, perhaps that part of the soldiers preserved alive were brought home captives:

and brought gifts; paid a yearly tribute to King David, as they afterwards did to Solomon and to Rehoboam, until the revolt of the ten tribes, and then they paid it unto the kings of Israel, to the times of Ahab, see 2 Kings 3:4, though these gifts may be distinct from, and besides the tribute paid, which is supposed in their being servants, see 2 Chronicles 17:11. Thus the Arabians (g) carried gifts to the king of Persia besides tribute.

(e) Antiqu. l. 7. c. 5. sect. 1.((f) Bemidbar Rabba, l. 14. fol. 212. 1.((g) Herodot. Thalia, sive, l. 3. c. 97.

Subjugation of Moab. - "He smote Moab (i.e., the Moabites), and measured them with the line, making them lie down upon the ground, and measured two lines (i.e., two parts) to put to death, and one line full to keep alive." Nothing further is known about either the occasion or the history of this war, with the exception of the cursory notice in 1 Chronicles 11:22, that Benaiah, one of David's heroes, smote two sons of the king of Moab, which no doubt took place in the same war. In the earliest period of his flight from Saul, David had met with a hospitable reception from the king of Moab, and had even taken his parents to him for safety (1 Samuel 22:3-4). But the Moabites must have very grievously oppressed the Israelites afterwards, that David should have inflicted a severer punishment upon them after their defeat, than upon any other of the nations that he conquered, with the exception of the Ammonites (2 Samuel 12:31), upon whom he took vengeance for having most shamefully insulted his ambassadors (2 Samuel 10:2.). The punishment inflicted, however, was of course restricted to the fighting men who had been taken prisoners by the Israelites. They were ordered to lie down in a row upon the earth; and then the row was measured for the purpose of putting two-thirds to death, and leaving one-third alive. The Moabites were then made "servants" to David (i.e., they became his subjects), "bringing gifts" (i.e., paying tribute).

And he smote Moab, and measured them with a line, casting them down to the ground; even with {b} two lines measured he to put to death, and with one full line to keep alive. And so the Moabites became David's servants, and brought gifts.

(b) He slew two parts as it pleased him, and reserved the third.

8:2 Moab - For although the king of Moab, out of hatred to Saul, gave protection to his parents, 1Sam 22:3,4, yet the Moabites were perpetual and sworn enemies to the Israelites, who therefore were forbidden to admit them into the congregation of the Lord. And though God commanded them in their march to Canaan, to spare the Moabites, yet afterwards they proved fierce enemies to God and his people, and thereby provoked God to alter his carriage towards them. Measured them - That is, having conquered the land, he made an estimate of it, and distributed the towns and people into three parts. Casting down - Overthrowing their towns, and utterly destroying their people in manner following. And now that prophecy, Numb 24:17, was accomplished.

2. he smote Moab, and measured them with a line-This refers to a well-known practice of Eastern kings, to command their prisoners of war, particularly those who, notorious for the atrocity of their crimes or distinguished by the indomitable spirit of their resistance, had greatly incensed the victors, to lie down on the ground. Then a certain portion of them, which was determined by lot, but most commonly by a measuring-line, were put to death. Our version makes him put two-thirds to death, and spare one-third. The Septuagint and Vulgate make one-half. This war usage was not, perhaps, usually practised by the people of God; but Jewish writers assert that the cause of this particular severity against this people was their having massacred David's parents and family, whom he had, during his exile, committed to the king of Moab.

8:1-8. David subdued the Philistines. They had long been troublesome to Israel. And after the long and frequent struggles the saints have with the powers of darkness, like Israel with the Philistines, the Son of David shall tread them all under foot, and make the saints more than conquerors. He smote the Moabites, and made them tributaries to Israel. Two parts he destroyed, the third part he spared. The line that was to keep alive, though it was but one, is ordered to be a full line. Let the line of mercy be stretched to the utmost. He smote the Syrians. In all these wars David was protected, for this in his psalms he often gives glory to God.