1 Samuel 13:3-5

Amplified Bible

³ Jonathan attacked and defeated the Philistine garrison which was at Geba, and the Philistines heard about it. Then Saul blew the trumpet throughout the land, saying, “Let the Hebrews hear.” ⁴ All Israel heard that Saul had defeated the Philistine garrison, and also that Israel had become despicable to the Philistines. And the people were summoned to join Saul at Gilgal.

⁵ Now the Philistines gathered to fight against Israel, 30,000 chariots and 6,000 horsemen, and troops in multitude, like sand on the seashore. They came up and camped at Michmash, east of Beth-aven.