'Group' in the Bible

Then Joab the son of Zeruiah and the servants of David went out, and they met at the pool of Gibeon. The one group sat on one side of the pool, and the other sat on the other side.

The descendants of Benjamin rallied after Abner, and they became as one fighting group and stood on the top of a certain hill.

Then three of the thirty leaders went down and came to David {at the time of the harvest} to the cave of Adullam, while a group of [the] Philistines [were] camping in the valley of [the] Rephaim.