Ecclesiastes 2:19-21

21st Century King James Version

¹⁹ And who knoweth whether he shall be a wise man or a fool? Yet shall he have rule over all my labor wherein I have labored, and wherein I have shown myself wise under the sun. This is also vanity.

²⁰ Therefore I went about to cause my heart to despair of all the labor which I had done under the sun.

²¹ For a man may labor in wisdom and in knowledge and in equity; yet to a man who hath not labored therein shall he leave it for his portion. This also is vanity and a great evil.