Daniel 2:40
The fourth kingdom shall be as strong as iron. For like as iron bruiseth and breaketh all things: Yea even as iron beateth everything down, so shall it beat down and destroy.
Daniel 7:7
After this I saw in a vision by night, and behold, the fourth beast was grim and horrible, and marvelous strong. It had great iron teeth, it devoured and destroyed, and stamped the residue under feet. It was far unlike the other beasts that were before it: for it had ten horns, whereof I took good heed.
Jeremiah 15:12
Doth one iron hurt another, or one metal that cometh from the North, another?
Daniel 2:33
his legs were of iron, his feet were part of iron and part of earth.
Daniel 7:19-26
After this, I required diligently to know the truth concerning the fourth beast, which was so far unlike the other beasts, and so horrible: whose teeth were of iron, and his nails of brass: which devoured and destroyed, and stamped the residue under his feet.
Daniel 8:24
He shall be mighty and strong, but not in his own strength. He shall destroy above measure, and all that he goeth about, shall prosper: he shall slay the strong and holy people.
Daniel 9:26
After these sixty two weeks, shall Christ be slain, and they shall have no pleasure in him. Then shall there come a people with the prince, and destroy the city and the Sanctuary: and his end shall come as the water flood. But the desolation shall continue till the end of the battle.
Daniel 11:36-45
The king shall do what him list, he shall exalt and magnify himself against all that is God. Yea, he shall speak marvelous things against the God of all gods, wherein he shall prosper, so long till the wrath be fulfilled, for the conclusion is devised already.
Amos 1:3
"Thus sayeth the LORD, 'For three and four wickednesses of Damascus, I will not spare her: because they have threshed Gilead with iron stales.
John 11:48
If we let him escape thus, all men will believe on him. And the Romans shall come and take away our country and the people."