David therefore departed thence, and escaped to the cave Adullam: and when his brethren and all his father's house heard [it], they went down thither to him. (22:1)

--2 Samuel--

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. (23:13)

--1 Chronicles--

Now three of the thirty captains went down to the rock to David, into the cave of Adullam; and the host of the Philistines encamped in the valley of Rephaim. (11:15)