Ecclesiastes 3:9-11

⁹What advantage has he that works in those things wherein he labors?

¹⁰I have seen all the trouble, which God has given to the sons of men to be troubled with.

¹¹All the things which he has made are beautiful in his time: he has also set the whole world in their heart, that man might not find out the work which God has wrought from the beginning even to the end.