'Iron' in the Bible

He brought out the people who were in it and put them to work with saws, iron picks, and axes. David did the same to all the Ammonite cities. Then he and all his troops returned to Jerusalem.

David supplied a great deal of iron to make the nails for the doors of the gateways and for the fittings, together with an immeasurable quantity of bronze,

“Notice I have taken great pains to provide for the house of the Lord—3,775 tons of gold, 37,750 tons of silver, and bronze and iron that can’t be weighed because there is so much of it. I have also provided timber and stone, but you will need to add more to them.

in gold, silver, bronze, and iron—beyond number. Now begin the work, and may the Lord be with you.”

So to the best of my ability I’ve made provision for the house of my God: gold for the gold articles, silver for the silver, bronze for the bronze, iron for the iron, and wood for the wood, as well as onyx, stones for mounting, antimony, stones of various colors, all kinds of precious stones, and a great quantity of marble.

For the service of God’s house they gave 185 tons of gold and 10,000 gold coins, 375 tons of silver, 675 tons of bronze, and 4,000 tons of iron.