Job 20:23 - Joseph Benson’s Commentary on the Old and New Testaments

When he is about to fill his belly That is, when he has enough to satisfy all his appetites, and shall design to indulge them in the pleasurable enjoyment of all his gains, and to spend his days in sensuality; God shall cast the fury of his wrath upon him Some dreadful and destructive judgment. And shall rain it upon him This phrase denotes both the author of his plagues, God, and the nature and quality of them, that they shall come upon him like rain, with great vehemence, so that he cannot prevent or avoid them; while he is eating As it fell upon thy sons, Job 1:18-19.