Ecclesiastes 12:8 KJV
Vanity of vanities, saith the preacher; all is vanity.
Ecclesiastes 12:8, King James Version
In context
7 Then shall the dust return to the earth as it was: and the spirit shall return unto God who gave it.
8 Vanity of vanities, saith the preacher; all is vanity.
9 And moreover, because the preacher was wise, he still taught the people knowledge; yea, he gave good heed, and sought out, and set in order many proverbs.