1 Samuel 13:4-5

13:4 All Israel heard this message, “Saul has attacked the Philistine outpost, and now Israel is repulsive to the Philistines!” So the people were summoned to join Saul at Gilgal.

13:5 For the battle with Israel the Philistines had amassed 3,000 chariots, 6,000 horsemen, and an army as numerous as the sand on the seashore. They went up and camped at Micmash, east of Beth Aven.