1 Samuel 8:11-12
8:11 He said, “Here are the policies of the king who will rule over you: He will conscript your sons and put them in his chariot forces and in his cavalry; they will run in front of his chariot.
8:12 He will appoint for himself leaders of thousands and leaders of fifties, as well as those who plow his ground, reap his harvest, and make his weapons of war and his chariot equipment.