I Samuel 22:1, 3-5 (NKJV)
1 David therefore departed from there and escaped to the cave of Adullam. So when his brothers and all his father’s house heard it, they went down there to him.
3 Then David went from there to Mizpah of Moab; and he said to the king of Moab, “Please let my father and mother come here with you, till I know what God will do for me.”
4 So he brought them before the king of Moab, and they dwelt with him all the time that David was in the stronghold.
5 Now the prophet Gad said to David, “Do not stay in the stronghold; depart, and go to the land of Judah.” So David departed and went into the forest of Hereth.