Ecclesiastes 8:7; Ecclesiastes 8:15; Ecclesiastes 8:17
For he does not know what is to be, for who can tell him how it will be?
And I commend joy, for man has no good thing under the sun but to eat and drink and be joyful, for this will go with him in his toil through the days of his life that God has given him under the sun.
then I saw all the work of God, that man cannot find out the work that is done under the sun. However much man may toil in seeking, he will not find it out. Even though a wise man claims to know, he cannot find it out.