1 Samuel 13:20
But all the Israelites went down to the Philistines, to sharpen every man his share, and his coulter, and his axe, and his mattock. But all the Israelites went down to the Philistines, to sharpen every man his share, and his coulter, and his axe, and his mattock.
The Israelites were so constrained by the Philistines that all of them had to go down to the Philistines to have their farming tools sharpened. That dependence exposed Israel's weakness in its crisis with the Philistines. It left Saul's small force almost unarmed when facing the Philistine army.