A person standing alone can be attacked and defeated, but two can stand back-to-back and conquer. Three are even better, for a triple-braided cord is not easily broken.
So the Three broke through the Philistine lines, drew some water from the well by the gate in Bethlehem, and brought it back to David. But he refused to drink it. Instead, he poured it out as an offering to the Lord.
Next in rank among the Three was Eleazar son of Dodai, a descendant of Ahoah. Once Eleazar and David stood together against the Philistines when the entire Israelite army had fled.