'Iron' in the Bible

Today, I am the One who has made you a fortified city, an iron pillar, and bronze walls against the whole land—against the kings of Judah, its officials, its priests, and the population.

All are stubborn rebelsspreading slander.They are bronze and iron;all of them are corrupt.

which I commanded your ancestors when I brought them out of the land of Egypt, out of the iron furnace.’ I declared: ‘Obey Me, and do everything that I command you, and you will be My people, and I will be your God,’

Can anyone smash iron,iron from the north, or bronze?

The sin of Judah is writtenwith an iron stylus.With a diamond pointit is engraved on the tablet of their heartsand on the horns of their altars,

“Go say to Hananiah: This is what the Lord says, ‘You broke a wooden yoke bar, but in its place you will make an iron yoke bar.’

For this is what the Lord of Hosts, the God of Israel, says, ‘I have put an iron yoke on the neck of all these nations that they might serve King Nebuchadnezzar of Babylon, and they will serve him. I have also put the wild animals under him.’”

‘The Lord has appointed you priest in place of Jehoiada the priest to be the chief officer in the temple of the Lord, responsible for every madman who acts like a prophet. You must confine him in the stocks and an iron collar.