“Three of the thirty chiefs went down to the rock to David at the cave of Adullam, when the army of Philistines was encamped in the valley of Rephaim. David was then in the stronghold. The garrison of the Philistines was then at Bethlehem. David said longingly. ‘O that someone would give me water to drink from the well of Bethlehem that is by the gate!’ Then the Three mighty men broke through the camp of the Philistines. They drew water out of the well of Bethlehem which was by the gate. They brought it to David. But David would not drink it. He poured it out to Yahweh. He said. ‘May God forbid that I should do this! Can I drink the blood of these men? For at the risk of their lives they brought it.’ Therefore he would not drink it. The Three warriors did those things.”
Once again, this is almost word for word as in 2 Samuel, chapter 23. Here there is no mention that it was harvest time like in 2 Samuel. When David was holding out in the cave at Adullam, he said that he would like some water from the well in Bethlehem. The 3 warriors set out to cross the Philistine garrison that was in Bethlehem, in order to get the water for David. They succeeded but then David would not drink the water. In 2 Samuel, Yahweh had told David not to do so. Here, it is David by himself who decided not to drink the water. It would be like drinking the blood of the men who risked their lives for him. This was the kind of thing that the famous 3 warriors would do.