Matthew Poole and continuators on 1 Samuel 13:20

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.

Not to the Land of the Philistines, for it is not said so, and that was too remote; but to the Stations and Garisons which the Philistines yet retained in several parts of Israels Land, though Samuel's Authority had so far over-awed them, that they durst not give the Israelites much Disturbance. In these, therefore, the Philistines kept all the Smiths; and here they allowed them the exercise of their Art for the uses here following.