'Iron' in the Bible

All the silver and gold and articles of bronze and iron are holy (consecrated) to the Lord; they shall go into the treasury of the Lord.”

Then they completely burned the city and everything that was in it. They put only the silver and the gold, and the articles of bronze and of iron, into the treasury of the house (tabernacle) of the Lord.

just as Moses the servant of the Lord had commanded the sons of Israel, as it is written in the Book of the Law of Moses, an altar of uncut stones on which no one has wielded an iron tool; and they offered on it burnt offerings to the Lord, and sacrificed peace offerings.

The sons of Joseph said, “The hill country is not enough for us, and all the Canaanites who live in the valley have iron chariots, both those who are in Beth-shean and its towns and those in the Valley of Jezreel.”

but the hill country shall be yours. For though it is a forest, you shall clear it and possess it to its farthest borders; for you shall drive out the Canaanites, even though they have iron chariots and though they are strong.”

and he said to them, “Return to your tents with great riches and with very much livestock, with silver, gold, bronze, iron, and with very many clothes; divide the spoil of your enemies with your brothers (fellow tribesmen).”