OT-PROPHET-MINOR.filter - strkjv iron:

strkjv@Amos:1:3 @ Thus saith the LORD; For three transgressions of Damascus, and for four, I will not turn away the punishment thereof; because they have threshed Gilead with threshing instruments of iron:

strkjv@Micah:4:13 @ Arise and thresh, O daughter of Zion: for I will make thine horn qeren# iron, and I will make thy hoofs brass: and thou shalt beat in pieces many people: and I will consecrate their gain unto the LORD, and their substance unto the Lord of the whole earth.