The feat at Bethlehem by three of the thirty was the occasion of their being formed into a distinct triad; Abishai 2 Samuel 23:18, Benaiah 2 Samuel 23:20, and a third not named, were probably the three.

In the harvest time - An error for "to the rock" (compare the marginal reference).

The troop of the Philistines - The word rendered "troop" occurs in this sense only here (and, according to some, in 2 Samuel 23:11), and perhaps in Psalm 68:11. In 1 Chronicles 11, as in 2 Samuel 23:16 the reading is "host" or "camp," which may be the true reading here.

Pitched - The same Hebrew word as "encamped" in 1 Chronicles 11:15.

Valley of Rephaim - Or Giants. See 2 Samuel 21:16 note.

And three of the thirty - The word שלשים shalishim, which we translate thirty, probably signifies an office or particular description of men. Of these shalishim we have here thirty-seven, and it can scarcely be said with propriety that we have thirty-seven out of thirty; and besides, in the parallel place, 1 Chronicles 11:11-47, there are sixteen added. The captains over Pharaoh's chariots are termed שלשים shalishim, Exodus 14:7.

The Philistines pitched in the valley of Rephaim - This is the same war which is spoken of 2 Samuel 5:17, etc.

And three of the thirty chiefs went down,.... Or three that were chief of the thirty, superior to them; which some understand of the three before mentioned, so Josephus (w); and that having related some particular exploits of theirs, here observes one, in which they were all concerned; and others think the three next are meant, of whom Abishai was the chief, Benaiah the next, and the third Asahel; but the first sense is best:

and came to David in the harvest time, unto the cave of Adullam; not when he was there, upon his flight from Saul, 1 Samuel 22:1; but after he was king, when engaged in war with the Philistines; perhaps wheat harvest is here meant:

and the troop of the Philistines pitched in the valley of Rephaim; the army of the Philistines, as the Targum; of the valley of Rephaim; see Gill on Joshua 15:8.

(w) Antiqu. l. 7. c. 12. sect. 4.

To this deed there is appended a similar heroic feat performed by three of the thirty heroes whose names are not given. The Chethib שׁלשׁים is evidently a slip of the pen for שׁלשׁה (Keri and Chronicles). The thirty chiefs are the heroes named afterwards. As שׁלשׁה has no article either in our text or the Chronicles, the three intended are not the three already mentioned (Jashobeam, Eleazar, and Shammah), but three others out of the number mentioned in 2 Samuel 23:24. These three came to David in the harvest time unto the cave of Adullam (see at 1 Samuel 22:1), when a troop of the Philistines was encamped in the valley of Rephaim, and David was on the mountain fortress, and a Philistian post was then in Bethlehem. And David longed for water, and said, "Oh that one would bring me water to drink out of the well of Bethlehem at the gate!" The encampment of the Philistines in the valley of Rephaim, and the position of David on the mountain fortress (בּמּצוּדה), render it probable that the feat mentioned here took place in the war with the Philistines described in 2 Samuel 5:17. Robinson could not discover any well in Bethlehem, "especially none 'by the gate,' except one connected with the aqueduct on the south" (Palestine, vol. ii. p. 158). בּשּׁער need not be understood, however, as signifying that the well was in or under the gate; but the well referred to may have been at the gate outside the city. The well to which tradition has given the name of "David's well" (cisterna David), is about a quarter of an hour's walk to the north-east of Bethlehem, and, according to Robinson's description, is "merely a deep and wide cistern or cavern now dry, with three or four narrow openings cut in the rock." But Ritter (Erdk. xvi. p. 286) describes it as "deep with clear cool water, into which there are three openings from above, which Tobler speaks of as bored;" and again as a cistern "built with peculiar beauty, from seventeen to twenty-one feet deep, whilst a house close by is pointed out to pilgrims as Jesse's house."

And three of the thirty chief went down, and came to David in the harvest time unto the cave of Adullam: and the troop of the Philistines pitched in the valley of Rephaim.

three...: or, the three captains over the thirty

23:8-39 David once earnestly longed for the water at the well of Bethlehem. It seems to be an instance of weakness. He was thirsty; with the water of that well he had often refreshed himself when a youth, and it was without due thought that he desired it. Were his valiant men so forward to expose themselves, upon the least hint of their prince's mind, and so eager to please him, and shall not we long to approve ourselves to our Lord Jesus, by ready compliance with his will, as shown us by his word, Spirit, and providence? But David poured out the water as a drink-offering to the Lord. Thus he would cross his own foolish fancy, and punish himself for indulging it, and show that he had sober thoughts to correct his rash ones, and knew how to deny himself. Did David look upon that water as very precious which was got at the hazard of these men's blood, and shall not we much more value those benefits for purchasing which our blessed Saviour shed his blood? Let all beware of neglecting so great salvation.