Answer: He united twelve tribes under one king.
Explanation: Upon their arrival in the promised land, that is, Canaan, the Jews for a long time had struggles and conflicts with the indigenous peoples. From the time of arrival, the Jews were governed by judges, of whom the first was Joshua, the disciple and successor of Moses. He ruled as a judge over the twelve tribes of Israel. So it was until the appearance of the first known king Saul, sometime in 11th century BC, who was the king of all twelve tribes, and he himself was from the tribe of Benjamin. According to the Bible, he became king on the basis of God's vision of the prophet Samuel. Thus King Saul, hearing Samuel's prophecies, was successful in the fight against the surrounding indigenous peoples. When he disobeyed God's command, refusing to listen to the advice of the prophet Samuel, he was killed in one of the battles, and Samuel then anointed David king of Israel, that is, all the twelve tribes.