Matthew Poole and continuators on 1 Samuel 14:11

11 And both of them discovered themselves unto the garison of the Philistines: and the Philistines said, Behold, the Hebrews come forth out of the holes , where they had hid themselves.

Therefore Ionathan chose that Rocky and unusual way, that the Philistines might suppose they did not come from Saul's Camp to Fight with them, but rather out of the Caves, and holes of the Rocks, from which their necessity had now driven them.