'Iron' in the Bible

(For only Og king of Bashan was left of the remnant of the Rephaim. Behold, his bedstead was an iron bedstead; it is in Rabbah of the sons of Ammon. Its length was nine cubits and its width four cubits by ordinary cubit.)

But the Lord has taken you and brought you out of the iron furnace, from Egypt, to be a people for His own possession, as today.

a land where you will eat food without scarcity, in which you will not lack anything; a land whose stones are iron, and out of whose hills you can dig copper.

as when a man goes into the forest with his friend to cut wood, and his hand swings the axe to cut down the tree, and the iron head slips off the handle and strikes his friend so that he dies—he may flee to one of these cities and live;

Moreover, you shall build there an altar to the Lord your God, an altar of stones; you shall not wield an iron tool on them.

The heaven which is over your head shall be bronze, and the earth which is under you, iron.

therefore you shall serve your enemies whom the Lord will send against you, in hunger, in thirst, in nakedness, and in the lack of all things; and He will put an iron yoke on your neck until He has destroyed you.

“Your locks will be iron and bronze,And according to your days, so will your leisurely walk be.