Is a vanity tossed to and fro of them that seek death. — Rather, is (as) the driven (fleeting) breath of those who are seeking death. They are seeking in reality not riches, but death, and these riches will vanish like their own breath. (Comp. Wis. 5:14; Psalms 68:2).
Related Commentaries of Proverbs 21:6
Proverbs 21:6
6 The getting of treasures by a lying tongue is a vanity tossed to and fro of them that seek death.