Three of the thirty chief men went down to David, to the rock at the cave of Adullam, while a company of Philistines was encamped in the Valley of Rephaim.
Jewish Publication Society of America Version (JPS1917) - 1 Chronicles 11:15 >And three of the thirty chiefs went down to the rock to David, unto the cave of Adullam; and the host of the Philistines were encamped in the valley of Rephaim.