2 Samuel 23:8-17

These are the names of the mighty men (warriors) whom David had: Josheb-basshebeth, a Tahchemonite, chief of the captains, also called Adino the Eznite (spear) because of the eight hundred men killed [by him] at one time. [1 Chr 11:11] Next to him was Eleazar the son of Dodo the son of Ahohi. He was one of the three mighty men with David when they taunted and defied the Philistines assembled there for battle, and the men of Israel had gone. Eleazar stood up and struck down the Philistines until his hand was weary and clung to the sword. The LORD brought about a great victory that day; the people returned after him only to take the spoil [of the slain]. Next to Eleazar was Shammah the son of Agee the Hararite. The Philistines were gathered into an army where there was a plot of ground full of lentils, and the people [of Israel] fled from the Philistines. But he took his stand in the center of the plot and defended it and struck down the Philistines; and the LORD brought about a great victory. Then three of the thirty chief men went down and came to David at harvest time in the cave of Adullam, while an army of Philistines was encamped in the Valley of Rephaim. David was then in the stronghold, and the garrison of the Philistines was then in Bethlehem. And David had a craving and said, “Oh that someone would give me water to drink from the well of Bethlehem, which is by the gate!” So the three mighty men broke through the camp of the Philistines, and drew water from the well of Bethlehem by the gate, and carried and brought it to David. But he would not drink it, but poured it out [in worship] to the LORD. And he said, “Far be it from me, O LORD, that I should drink this. [Is it not the same as] the blood of the men who went at the risk of their lives?” So he would not drink it. These things the three mighty men did.