1 Chronicles 11:11-19

This is the list of David’s mighty men: Jashobeam, the son of a Hachmonite, the chief of the thirty [heroes]. He lifted up his spear against three hundred whom he killed at one time. Next to him [in rank] was Eleazar the son of Dodo the Ahohite, who was one of the three mighty men. He was with David at Pasdammim [where David had killed Goliath] and there the Philistines were gathered together for battle, and there was a plot of ground full of barley; and the people [of Israel] fled before the Philistines. But they took their stand in the midst of that plot and defended it, and killed the Philistines; and the LORD rescued them by a great victory. [2 Sam 23:9, 10] Three of the thirty chief men went down to the rock to David, into the cave of Adullam, while the army of the Philistines was camped in the Valley of Rephaim. David was then in the stronghold, while the garrison of the Philistines was in Bethlehem. David had a craving and said, “Oh that someone would give me a drink of water from the well of Bethlehem, which is next to the gate!” Then the three [mighty men] broke through the camp of the Philistines and drew water out of the well of Bethlehem which was next to the gate, and brought it to David. But David would not drink it; he poured it out to the LORD [as an offering]; and he said, “Far be it from me before my God that I would do this thing! Shall I drink the blood of these men who have put their lives in jeopardy? For they brought it at the risk of their lives.” So he would not drink it. These things the three mighty men did.