'Iron' in the Bible

Then get yourself an iron plate and set it up as an iron wall between you and the city, and set your face toward it so that it is under siege, and besiege it. This is a sign to the house of Israel.

“Son of man, the house of Israel has become dross to Me; all of them are bronze and tin and iron and lead in the furnace; they are the dross of silver.

As they gather silver and bronze and iron and lead and tin into the furnace to blow fire on it in order to melt it, so I will gather you in My anger and in My wrath and I will lay you there and melt you.

“Tarshish was your customer because of the abundance of all kinds of wealth; with silver, iron, tin and lead they paid for your wares.

Vedan and Javan paid for your wares from Uzal; wrought iron, cassia and sweet cane were among your merchandise.