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Job 21:18ESV·author unknown

That they are like straw before the wind, and like chaff that the storm carries away?

Matthew Henry Presbyterian @wholebiblehenry

Job had largely described the prosperity of wicked people; now, in these verses, I. He opposes this to what his friends had maintained concerning their certain ruin in this life. "Tell me how often do you see the candle of the wicked put out? Do you not as often see it burnt down to the socket, until it goes out of itself? Job 21:17.

Commenting on Job 21:17-26

John Gill Reformed Baptist @doctorgill

God layeth up his iniquity for his children,.... This is a prevention of an objection which Job foresaw his friends would make, and therefore takes it up and answers to it; you will say, that, be it so, that the wicked are for the most part prosperous, and their prosperity continues; God does not punish them now for their sins in their own persons, yet...

Jamieson-Fausset-Brown Reformed @jfbcommentary

Job alludes to a like sentiment of Bildad (Job 18:18), using his own previous words (Job 13:25).