I Samuel 13:19-22

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. So it came about, on the day of battle, that there was neither sword nor spear found in the hand of any of the people who were with Saul and Jonathan. But they were found with Saul and Jonathan his son.