Adam Clarke on Job 3:15

Or with princes that had gold - Chief or mighty men, lords of the soil, or fortunate adventurers in merchandise, who got gold in abundance, filled their houses with silver, left all behind, and had nothing reserved for themselves but the empty places which they had made for their last dwelling, and where their dust now sleeps, devoid of care, painful journeys, and anxious expectations. He alludes here to the case of the covetous, whom nothing can satisfy, as an Asiatic writer has observed, but the dust that fills his mouth when laid in the grave - Saady.