2 Samuel 23:16-20

So the three mighty men forced their way into the camp of the Philistines, and drew water from the well of Bethlehem which was by the gate, and carried it and brought it to David. Yet he would not drink it, but poured it out as an offering to the Lord;

and he said, “Far be it from me, Lord, that I would do this! Should I drink 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.

Now Abishai, the brother of Joab, the son of Zeruiah, was chief of the thirty. And he swung his spear against three hundred and killed them, and had a name as well as the three.

He was the most honored among the thirty, so he became their commander; however, he did not attain to the reputation of the three.

Then Benaiah the son of Jehoiada, the son of a valiant man of Kabzeel, who had done great deeds, killed the two sons of Ariel of Moab. He also went down and killed a lion in the middle of a pit on a snowy day.