8 These are the names of the mighty men whom David had: Joseb-Bassebeth, Tachkemonite the chief of the captains: he was Adino the Eznite; he [fought] against eight hundred, slain [by him] at one time. 9 And after him, Eleazar the son of Dodo the son of an Ahohite: he was one of the three mighty men with David, when they had defied the Philistines that were there gathered together to battle, and the men of Israel were gone up. 10 He arose and smote the Philistines until his hand was weary, and his hand clave to the sword; and Jehovah wrought a great deliverance that day; and the people returned after him only to spoil. 11 And after him, Shammah the son of Agee the Hararite: the Philistines were gathered into a troop, and there was there a plot of ground full of lentils, and the people had fled before the Philistines; 12 and he stood in the midst of the plot and delivered it, and smote the Philistines, and Jehovah wrought a great deliverance. 13 And three of the thirty chiefs went down, and came to David in the harvest time to the cave of Adullam, when the troop of the Philistines was encamped in the valley of Rephaim. 14 And David was then in the stronghold; and the Philistines' garrison was then at Bethlehem. 15 And David longed, and said, Oh that one would give me to drink of the water of the well of Bethlehem, which is in the gate! 16 And the three mighty men broke through the camp of the Philistines, and drew water out of the well of Bethlehem, which is in the gate, and took it, and brought it to David; however he would not drink of it, but poured it out to Jehovah. 17 And he said, Be it far from me, Jehovah, that I should do this thing! is it not the blood of the men that went at the risk of their lives? Therefore he would not drink it. These things did the three mighty men.
Matthew Henry's Commentary on 2 Samuel 23:8-17
Commentary on 2 Samuel 23:8-39
(Read 2 Samuel 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.