Ecclesiastes 2:21–23

21 When there is a person whose work was done with wisdom, knowledge, and skill,p and he must give his portion to a person who has not worked for it, this too is futile and a great wrong. 22 For what does a person get with all his work and all his effortsq that he labors at under the sun? 23 For all his days are filled with grief, and his occupation is sorrowful;r even at night, his mind does not rest.s This too is futile.