Albert Barnes Commentary Job 20:21

"There was nothing left that he devoured not; Therefore his prosperity shall not endure." — Job 20:21 (ASV)

Regarding the phrase “There shall none of his meat be left” (the margin note says, “or, be none left for his meat”), Noyes renders it, “Because nothing escaped his greatness.” Professor Lee renders it, “no survivor shall remain for his provision.” But the meaning is probably that nothing will remain of his food, or it will all be wasted or dissipated.

Therefore, shall no man look for his goods—or rather, his goods or his property will not endure. However, a great variety of interpretations has been given to this passage. The Hebrew word rendered “shall look,” יחיל (yāchı̂yl)—is from חוּל (chûl)—which means “to turn around, to twist, to whirl;” and from this arises the notion of being firm, stable, or strong—as a rope that is twisted is strong. That is the idea here; and the meaning is that his property would not be secure or firm, or that he would not prosper. Jerome renders it, “Nothing shall remain of his goods.” The Septuagint, “Therefore his good things—αὐτοῦ τὰ ἀγαθά (autou ta agatha)—shall not flourish”—ἀνθήσει (anthēsei).