1 Samuel 13:5-6

5The Philistines also gathered to fight against Israel: three thousand chariots, six thousand horsemen, and troops as numerous as the sand on the seashore. They went up and camped at Michmash, east of Beth-aven.

6The men of Israel saw that they were in trouble because the troops were in a difficult situation. They hid in caves, in thickets, among rocks, and in holes and cisterns.