1 Samuel 22:1-2
David Goes to Adullam and Mizpah
22:1 So David left there and escaped to the cave of Adullam. When his brothers and the rest of his father’s family learned about it, they went down there to him.
22:2 All those who were in trouble or owed someone money or were discontented gathered around him, and he became their leader. He had about four hundred men with him.