Job 28:2-6

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

3A miner puts an end to the darkness; he probes the deepest recesses for ore in the gloomy darkness.

4He cuts a shaft far from human habitation, in places unknown to those who walk above ground. Suspended far away from people, the miners swing back and forth.

5Food may come from the earth, but below the surface the earth is transformed as by fire.

6Its rocks are a source of lapis lazuli, containing flecks of gold.