1 Samuel 8:12; 1 Samuel 13:5

12 "He will appoint for himself commanders of thousands and of fifties, and some to do his plowing and to reap his harvest and to make his weapons of war and equipment for his chariots.

5 Now the Philistines assembled to fight with Israel, 30,000 chariots and 6,000 horsemen, and people like the sand which is on the seashore in abundance; and they came up and camped in Michmash, east of Beth-aven.