1 Samuel 22:2-4

2 And every man who was in distress, and every man who was in debt, and every man who was discontented, gathered themselves to him, and he became captain over them. And there were with him about four hundred men.

3 And David went from there to Mizpeh of Moab, and he said to the king of Moab, Let my father and my mother, I pray thee, come forth, and be with you, till I know what God will do for me.

4 And he brought them before the king of Moab, and they dwelt with him all the while that David was in the stronghold.