1 Samuel 13:5-7

5And the Philistines gathered themselves together to fight with Israel, thirty thousand chariots, and six thousand horsemen, and people as the sand which is on the sea shore in multitude: and they came up, and pitched in Michmash, eastward from Beth–aven. 6When the men of Israel saw that they were in a strait, (for the people were distressed,) then the people did hide themselves in caves, and in thickets, and in rocks, and in high places, and in pits. 7And some of the Hebrews went over Jordan to the land of Gad and Gilead. As for Saul, he was yet in Gilgal, and all the people followed him trembling.1