At that time, the Philistines gathered their armed forces to fight against Israel. Achish said to David, “You surely know that you and your men must march out with me in the army.”
Meanwhile the Philistines assembled themselves to fight with Israel: 30,000 chariots, 6,000 horsemen and troops as numerous as the sand on the seashore. They marched up and camped in Michmas, east of Beth-aven.
Now when the Philistines heard that Bnei-Yisrael had assembled at Mizpah, the lords of the Philistines marched against Israel. When Bnei-Yisrael heard it, they were afraid of the Philistines.