Ecclesiastes 2:18-19

18I thought about all the hard work that I have done here on the earth. When I die, all the things that I worked so hard to get will belong to the next king. So I hated all my hard work.

19The next king may be a wise man, or he may be a foolish man. Nobody knows! But all the things that I used my wisdom and hard work to get will belong to him. All this has no purpose.