In Context

13 And good is not to the wicked, and he doth not prolong days as a shadow, because he is not fearing before God.

14 There is a vanity that hath been done upon the earth, that there are righteous ones unto whom it is coming according to the work of the wicked, and there are wicked ones unto whom it is coming according to the work of the righteous. I have said that this also is vanity.

15 And I have praised mirth because there is no good to man under the sun except to eat and to drink, and to rejoice, and it remaineth with him of his labour the days of his life that God hath given to him under the sun.

16 When I gave my heart to know wisdom and to see the business that hath been done on the earth, (for there is also a spectator in whose eyes sleep is not by day and by night),

17 then I considered all the work of God, that man is not able to find out the work that hath been done under the sun, because though man labour to seek, yet he doth not find; and even though the wise man speak of knowing he is not able to find.

Ecclesiastes 8:16 in Other Translations