Isaiah 10:34; Isaiah 44:12; Isaiah 48:4; Isaiah 60:17

Isaiah 10:34

34 And he shall cut down the thickets of the forest with iron, and Lebanon shall fall by a mighty one.

Isaiah 44:12

12 The smith with the tongs both worketh in the coals, and fashioneth it with hammers, and worketh it with the strength of his arms: yea, he is hungry, and his strength faileth: he drinketh no water, and is faint.

Isaiah 48:4

4 Because I knew that thou art obstinate, and thy neck is an iron sinew, and thy brow brass;

Isaiah 60:17

17 For brass I will bring gold, and for iron I will bring silver, and for wood brass, and for stones iron: I will also make thy officers peace, and thine exactors righteousness.