John Gill Commentary Ecclesiastes 4:7

"Then I returned and saw vanity under the sun." — Ecclesiastes 4:7 (ASV)

Then I returned, and I saw vanity under the sun .
] Another vanity besides what he had taken notice of, and is as follows. Aben Ezra's note is, "I turned from considering the words of this fool, and I saw another fool, the reverse of the former."