I Samuel 13:19-21

Now there was no blacksmith to be found throughout all the land of Israel, for the Philistines said, “Lest the Hebrews make swords or spears.” But all the Israelites would go down to the Philistines to sharpen each man’s plowshare, his mattock, his ax, and his sickle; and the charge for a sharpening was a pim for the plowshares, the mattocks, the forks, and the axes, and to set the points of the goads.