(2) He smote Moab.--David's former friendly relations with Moab (probably connected with his own descent from Ruth), are mentioned in 1Samuel 22:3-4. The cause of his entire change of bearing towards them is not certainly known, but according to Jewish tradition the Moabites had proved false to their trust, and had put to death David's father and mother. This is not unlikely, as his parents are never mentioned again after they were left in Moab. Others think that the Moabites had been guilty of some treachery towards David in his war with the Syrians and Ammonites. The two suppositions are quite consistent, and both may have been true. Many writers see in this conquest at least a partial fulfilment of the prophecy in Numbers 24:17.

With two lines.--This expression with the "one full line" of the next clause is equivalent to saying that David measured off the bodies of his prostrate enemies with a line divided into three equal parts. When they had been made to lie down upon the ground, side by side, the line was stretched over them. Such as were found under the two first parts of it were put to death, those under the third part were spared, thus two-thirds of all the Moabite men perished. There is no mention of this in 1Chronicles 18:2.

Brought gifts.--A frequent euphemism for paid tribute. (Comp. 2Samuel 8:6.)

Verse 2. - He smote Moab. In the previous history we find David and Moab on such friendly terms that he entrusted his father and mother into their king's keeping (1 Samuel 22:3, 4). Now he not only subjugates them, but puts two-thirds or, according to the ancient versions, half of the captured combatants to death. Compared with the custom of the Romans, and with the attempt to destroy all the males in Edom, this was mild treatment; for we find Caesar in his Gallic wars putting all his prisoners to death, and using for their execution the mere phrase, "he counted them in the number of enemies," as if the killing of enemies was a matter of course. The customs of the Israelites in war were not so cruel, and this treatment of the Moabites seems to be mentioned as showing that they received exceptionally severe treatment. The justification of this is found by Jewish commentators, on the authority of the Midrash, in the supposed fact that the King of Moab had put David's father and mother to death. But as Philippson adds, even so it was an instance of the extreme barbarity of ancient warfare. Casting them down to the ground; Hebrew, making them to lie down on the ground; and so the Revised Version. It is plain that those who were made to lie on the ground were combatants who had been made prisoners, and the Hebrew seems to mean that, while they were thus prostrate, they were measured off into three divisions, whereof two were put to the sword, and one permitted to live. All the versions, however, understand that only half were put to death, making the sense to be that he measured them with two cords, one to kill, and one full cord - one, that is, of larger size, to save alive. We get no help from 1 Chronicles 18:2, where this treatment of the Moabites is omitted. It is probable that it was in this war that Benaiah slew "two lion-like men of Moab" (1 Chronicles 11:22), who were its champions and perhaps members of the royal house. They brought gifts means that they paid an annual tribute; but the phrase shows that, though now they were David's servants, that is, subjects, yet that they were left in possession of their independence, and that their internal affairs were managed by native authorities.

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.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.