1Sam 13:16-22

16Saul, his son Jonathan, and the people who were present with them stayed in Geba of Benjamin; but the Philistines encamped at Michmash.17And raiders came out of the camp of the Philistines in three companies; one company turned toward Ophrah, to the land of Shual,18another company turned toward Beth-horon, and another company turned toward the mountain that looks down upon the valley of Zeboim toward the wilderness.19Now there was no smith to be found throughout all the land of Israel; for the Philistines said, “The Hebrews must not make swords or spears for themselves”;20so all the Israelites went down to the Philistines to sharpen their plowshare, mattocks, axes, or sickles;21The charge was two-thirds of a shekel for the plowshares and for the mattocks, and one-third of a shekel for sharpening the axes and for setting the goads.22So on the day of the battle neither sword nor spear was to be found in the possession of any of the people with Saul and Jonathan; but Saul and his son Jonathan had them.