Ecclesiastes 8:16-17

New International Version

¹⁶ When I applied my mind to know wisdom^(A) and to observe the labor that is done on earth^(B)—people getting no sleep day or night— ¹⁷ then I saw all that God has done.^(C) No one can comprehend what goes on under the sun. Despite all their efforts to search it out, no one can discover its meaning. Even if the wise claim they know, they cannot really comprehend it.^(D)