'Iron' in the Bible

And he brought out the people that were in it, and cut them with the saw, and with harrows of iron, and with saws. And so David did to all the cities of the children of Ammon. And David and all the people returned to Jerusalem.

And David prepared iron in abundance for the nails for the doors of the gates, and for the joists, and brass in abundance without weight;

And behold, in my affliction I have prepared for the house of Jehovah a hundred thousand talents of gold, and a thousand thousand talents of silver; and of brass and iron without weight, for it is in abundance; and timber and stone have I prepared; and thou shalt add to it.

Of the gold, the silver, and the brass, and the iron, there is no number. Arise and be doing and Jehovah be with thee.

And I have prepared according to all my power for the house of my God gold for things of gold, and silver for things of silver, and brass for things of brass, iron for things of iron, and wood for things of wood; onyx stones, and stones to be set, glistering stones, and of divers colours, and all manner of precious stones, and white marble in abundance.

And they gave for the service of the house of God five thousand talents and ten thousand darics of gold, and ten thousand talents of silver, and eighteen thousand talents of brass, and one hundred thousand talents of iron.