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Job 28:3ESV·author unknown

Man puts an end to darkness and searches out to the farthest limit the ore in gloom and deep darkness.

Matthew Henry Presbyterian @wholebiblehenry

Here Job shows, 1. What a great way the wit of man may go in diving into the depths of nature and seizing the riches of it, what a great deal of knowledge and wealth men may, by their ingenious and industrious searches, make themselves masters of.

Commenting on Job 28:1-11

John Gill Reformed Baptist @doctorgill

He setteth an end to darkness,.... Some understand this and what follows of God, who, by making the luminaries, has fixed the periods and revolutions of light and darkness, of day and night; or who has determined the times before appointed, for the discoveries of things in nature, as mines of gold, silver, and precious stones, how long they should lie in darkness, and then...

Jamieson-Fausset-Brown Reformed @jfbcommentary

"Man makes an end of darkness," by exploring the darkest depths (with torches). all perfection--rather, carries out his search to the utmost perfection; most thoroughly searches the stones of darkness and of the shadow of death (thickest gloom); that is, the stones, whatever they be, embedded in the darkest bowels of the earth [UMBREIT] (Job 26:10).