Albert Barnes' Notes on the Whole Bible - Job 15:31
Let not him that is deceived trust in vanity - The sense is, “Let him not trust in vanity. He will be deceived. Vanity will be his recompense.” The idea is, that a man should not confide in that which will furnish no support. He should not rely on his wealth and rank; his houses and lands; his servants, his armies, or his power, if he is wicked, for all this is vain. He needs some better reliance, and that can be found only in a righteous life. The word vanity here means that which is... read more
The Pulpit Commentary - Job 15:35
They conceive mischief, and bring forth vanity; rather, as in the margin, iniquity. And their belly prepareth deceit. Internally, i.e. in their inner nature—in their heart, as we should any—they make ready deceits. "The viscera," as Professor Lee observes, "are often made by the Hebrews the seat of thought." read more