שמואל א יג:כ פירוש: רש״י

And all of Yisroel would go down to the Philistines. And when Yiroel needed iron smiths to sharpen mattocks, axes and tools, they had to go down to the land of the Philistines.

His plowshare. Soc in O.F.

His mattock. Coltre in O.F.