Albert Barnes Commentary Ecclesiastes 3:14

"I know that, whatsoever God doeth, it shall be for ever: nothing can be put to it, nor anything taken from it; and God hath done it, that men should fear before him." — Ecclesiastes 3:14 (ASV)

The last clause of this verse goes beyond a declaration of the fact of God’s government of the world (Ecclesiastes 2:26) by adding the moral effect which that fact is calculated to produce on those who see it. It is the first indication of the practical conclusion (Ecclesiastes 12:13) of the book.