1 Chronicles 11:16-18

16David was then in the stronghold, and the garrison of the Philistines was then at Bethlehem.

17And David said longingly, "Oh that someone would give me water to drink from the well of Bethlehem that is by the gate!"

18Then the three mighty men broke through the camp of the Philistines and drew water out of the well of Bethlehem that was by the gate and took it and brought it to David. But David would not drink it. He poured it out to the Lord