'Iron' in the Bible

Then for your part take an iron frying pan and set it up as an iron wall between you and the city. Set your face toward it. It is to be under siege; you are to besiege it. This is a sign for the house of Israel.

"Son of man, the house of Israel has become slag to me. All of them are like bronze, tin, iron, and lead in the furnace; they are the worthless slag of silver.

As silver, bronze, iron, lead, and tin are gathered in a furnace so that the fire can melt them, so I will gather you in my anger and in my rage. I will deposit you there and melt you.

"'Tarshish was your trade partner because of your abundant wealth; they exchanged silver, iron, tin, and lead for your products.

and casks of wine from Izal they exchanged for your products. Wrought iron, cassia, and sweet cane were among your merchandise.