3 Mortals put an end to the darkness; they search out the farthest recesses for ore in the blackest darkness.

Read Job 28:3 Using Other Translations

He setteth an end to darkness, and searcheth out all perfection: the stones of darkness, and the shadow of death.
Man puts an end to darkness and searches out to the farthest limit the ore in gloom and deep darkness.
They know how to shine light in the darkness and explore the farthest regions of the earth as they search in the dark for ore.