1 Samuel 13:5-7

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. When the men of Israel saw that they were in a strait (for the people were hard-pressed), then the people hid themselves in caves, in thickets, in cliffs, in cellars, and in pits. Also some of the Hebrews crossed the Jordan into the land of Gad and Gilead. But as for Saul, he was still in Gilgal, and all the people followed him trembling.