Vanity of vanities, says the Preacher, vanity of vanities; all is vanity.
All Commentaries on Ecclesiastes 1:2 Go To Ecclesiastes 1
Jerome
AD 420
If everything that God made is very good, then how can everything be vanity—and not only vanity, but even vanity of vanities? As one song in the Song of Songs is shown to excel above all songs, so also is the magnitude of vanity demonstrated by the expression “vanity of vanities.”