'Iron' in the Bible

So then, send to me skilled men to work with gold, silver, bronze, and iron, and with purple, crimson, and blue fabric, knowledgeable in engraving, with the skilled men who [are] with me in Judah and in Jerusalem, whom David my father has established.

a son of a woman from the daughters of Dan, and his father [was] a man of Tyre, knowledgeable for working with gold, silver, bronze, iron, stone, and wood, and with purple, blue, and crimson fabric, and with fine linen, for engraving any engraving and devising any plan that is given to him, with your skilled men and the skilled men of my lord David your father.

And Zedekiah the son of Kenaanah made for himself horns of iron, and he said, "Thus says Yahweh: 'With these you will gore Aram to their destruction.'"

And the king and Jehoiada gave it to those who did the work of the service of the house of Yahweh. And they hired stonemasons and skilled craftsmen to restore the house of Yahweh, and also workers in iron and bronze to repair the house of Yahweh.