3 Bible Verses about Iron Objects

When they had passed the first guard and the second they came to the iron gate leading into the city, which opened to them of its own accord; they passed out, and after they had gone through one street, the angel immediately left him.

She gave birth to a son, a male child, who is to shepherd all the nations with an iron flail; her child was caught up to God and to his throne,

A sharp sword issues from his lips, wherewith to smite the nations; he will shepherd them with an iron flail, and trample the winepress of the passion of the anger of God almighty.