Ecclesiastes 2:18; Ecclesiastes 2:21; Ecclesiastes 2:26

18 I hated all my toil in which I toil under the sun, seeing that I must leave it to the man who will come after me,

21 because sometimes a person who has toiled with wisdom and knowledge and skill must leave everything to be enjoyed by someone who did not toil for it. This also is vanity and a great evil.

26 For to the one who pleases him God has given wisdom and knowledge and joy, but to the sinner he has given the business of gathering and collecting, only to give to one who pleases God. This also is vanity and a striving after wind.