Deuteronomy 8:9; Deuteronomy 28:23; Deuteronomy 33:25

Deuteronomy 8:9

9 a land where you will eat food without scarcity, in which you will not lack anything; a land whose stones are iron, and out of whose hills you can dig copper.

Deuteronomy 28:23

23 "The heaven which is over your head shall be bronze, and the earth which is under you, iron.

Deuteronomy 33:25

25 "Your locks will be iron and bronze, And according to your days, so will your leisurely walk be.