Ecclesiastes 3:9-11

⁹What profit has he who works in that in which he labors?

¹⁰I have seen the burden which God has given to the sons of men to be afflicted with.

¹¹He has made everything beautiful in its time. He has also set eternity in their hearts, yet so that man can’t find out the work that God has done from the beginning even to the end.