1 Samuel 13:18

16Saul, and Jonathan his son, and the people who were present with them, stayed in Geba of Benjamin; but the Philistines encamped in Michmash.

17The raiders came out of the camp of the Philistines in three companies: one company turned to the way that leads to Ophrah, to the land of Shual;

18another company turned the way to Beth Horon; and another company turned the way of the border that looks down on the valley of Zeboim toward the wilderness.

19Now there was no blacksmith found throughout all the land of Israel, for the Philistines said, “Lest the Hebrews make themselves swords or spears”;

20but all the Israelites went down to the Philistines, each man to sharpen his own plowshare, mattock, ax, and sickle.