Now three of the thirty chief men went down to the rock to David, into the cave of Adullam; and the army of the Philistines encamped in the Valley of Rephaim.
1 Chronicles 11:15
Surrounding context
11:14 But they stationed themselves in the middle of that field, defended it, and killed the Philistines. So the LORD brought about a great victory.
11:15 Now three of the thirty chief men went down to the rock to David, into the cave of Adullam; and the army of the Philistines encamped in the Valley of Rephaim.
11:16 David was then in the stronghold, and the garrison of the Philistines was then in Bethlehem.