1 Samuel 13:16-22
English Standard Version
Chapter 13
16And Saul and Jonathan his son and the people who were present with them stayed in Geba of Benjamin, but the Philistines encamped in 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 border that looks down on the Valley of Zeboim toward the wilderness.
19Now there was no blacksmith to be found throughout all the land of Israel, for the Philistines said, "Lest the Hebrews make themselves swords or spears."
20But every one of the Israelites went down to the Philistines to sharpen his plowshare, his mattock, his axe, or his sickle,
21and the charge was two-thirds of a shekel for the plowshares and for the mattocks, and a third of a shekel for sharpening the axes and for setting the goads.
22So on the day of the battle there was neither sword nor spear found in the hand of any of the people with Saul and Jonathan, but Saul and Jonathan his son had them.