Cross reference
Ecclesiastes 7:27
27 Behold, this have I found, saith the preacher, counting one by one, to find out the account:
Ecclesiastes 1:1-2
1 The words of the Preacher, the son of David, king in Jerusalem.
2 Vanity of vanities, saith the Preacher, vanity of vanities; all is vanity.
Ecclesiastes 12:8-10
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.
10 The preacher sought to find out acceptable words: and that which was written was upright, even words of truth.