Job 18:13 - Joseph Benson’s Commentary on the Old and New Testaments

It shall devour, &c. “Filthy ulcers shall consume his skin; an untimely death shall destroy his children. Heath and Houbigant. This sarcasm was peculiarly adapted to the case of Job, whose skin was thus consumed, and whose children had been destroyed in this manner. The reader must have had occasion frequently to remark, in this book, how often, amidst the sublimity of the eastern metaphors, the author drops the metaphor and treats of his subject simply; as in the present case, having spoken of the wicked man under the metaphor of a wild beast caught in a snare, in this verse he considers him no longer in that view, but speaks of him immediately in his own character.” Dodd.