Ecclesiastes 8:14-17 - Man Cannot Know God's Ways
14 Here was a vain thing which was done upon the earth - that there were righteous men unto whom it happened according to the work of the lawless, and there were lawless men, unto whom it happened according to the work of the righteous, - I said, that, even this, was vanity. 15 Then extolled I, gladness, in that there was nothing better for a man, under the sun, than to eat and to drink, and to be glad, - since, that, should tarry with him in his toil, for the days of his life which God had given him under the sun.
16 When I gave my heart, to know wisdom, and to consider the business that was done upon the earth, then surely, by day and by night, there was one who suffered not his eyes, to sleep. 17 Then I considered all the work of God, that man could not find out the work that was done under the sun, inasmuch as man toileth in seeking and yet cannot find, - yea, even though the wise man should say he knoweth, yet can he not find it out.