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Job 30:3ESV·author unknown

Through want and hard hunger they gnaw the dry ground by night in waste and desolation;

Matthew Henry Presbyterian @wholebiblehenry

Here Job makes a very large and sad complaint of the great disgrace he had fallen into, from the height of honour and reputation, which was exceedingly grievous and cutting to such an ingenuous spirit as Job's was. Two things he insists upon as greatly aggravating his affliction: - I. The meanness of the persons that affronted him.

Commenting on Job 30:1-14

John Gill Reformed Baptist @doctorgill

For want and famine they were solitary,.... The Targum interprets it, without children; but then this cannot be understood of the fathers; rather through famine and want they were reduced to the utmost extremity, and were as destitute of food as a rock, or hard flint, from whence nothing is to be had, as the word signifies, see Job 3:7; fleeing into the wilderness in...

Jamieson-Fausset-Brown Reformed @jfbcommentary

solitary--literally, "hard as a rock"; so translate, rather, "dried up," emaciated with hunger. Job describes the rudest race of Bedouins of the desert [UMBREIT]. fleeing--So the Septuagint. Better, as Syriac, Arabic, and Vulgate, "gnawers of the wilderness." What they gnaw follows in Job 30:4.