Job 28:2-6

2Iron is taken from the earth, and copper is smelted from ore.

3Man puts an end to darkness; he searches to the farthest reaches for ore in gloom and blackest darkness.

4He cuts open a shaft far from dwellings, in places forgotten by feet. Far from other people, they dangle back and forth.

5The earth, from which food comes, is transformed as by fire;

6a place whose rocks are sapphires, its dust contains gold.