1 Samuel 13:20

Hebrew Names version (HNV)

but all the Yisra'eli's went down to the Pelishtim, to sharpen every man his plowshare, mattock, axe, and sickle;

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[So did he] in the cities of Menasheh and Efrayim and Shim`on, even to Naftali, in their ruins round about.

Iron sharpens iron; so a man sharpens his friend's countenance.

if I whet my glittering sword, My hand take hold on judgment; I will render vengeance to my adversaries, and will recompense those who hate me.

Now there was no smith found throughout all Eretz-Yisra'el; for the Pelishtim said, Lest the Hebrews make them swords or spears:

yet they had a file for the mattocks, and for the plowshares, and for the forks, and for the axes, and to set the goads.