Ecclesiastes 8:14-17 - Man Cannot Know God's Ways
14 There is a futility that is done upon the earth. There are righteous men who get along as though they were wicked and there are wicked men who get along as though they were righteous. I said that this also is vanity. 15 Then I commended enjoyment (pleasure), because a man has no better thing under the sun, than to eat, and to drink, and to be merry. That will remain with him in his labor all the days of his life, which God gives him under the sun.
16 When I applied my heart to know wisdom, and to see the business that is done on the earth: (for also there is that neither day nor night sees sleep with his eyes) 17 I saw all the work of God. A man cannot discover the work that is done under the sun. Though a man labor to seek it out, yet he will not find it. Though a wise man thinks to know it, yet he will not be able to find it.