2 Samuel 23:13

At harvest time, three of the thirty chief men went down to David at the cave of Adullam, while a company of Philistines was encamped in the Valley of Rephaim.

And three of the thirty chief went down, and came to David in the harvest time unto the cave of Adullam: and the troop of the Philistines pitched in the valley of Rephaim.