'Iron' in the Bible

And he brought forth the people that were therein, and cut them with saws, and with harrows of iron, and with axes. And thus did David unto 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 couplings; and brass in abundance without weight;

Now, 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: timber also and stone have I prepared; and thou mayest add thereto.

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

Now I have prepared with all my might for the house of my God the gold for the things of gold, and the silver for the things of'silver, and the brass for the things of brass, the iron for the things of iron, and wood for the things of wood; onyx stones, and'stones to be set, stones for inlaid work, and of divers colors, and all manner of precious stones, and marble stones in abundance.

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