Ecclesiastes 3:11

3:11 God has made everything fit beautifully in its appropriate time,

but he has also placed ignorance in the human heart

so that people cannot discover what God has ordained,

from the beginning to the end of their lives.

Ecclesiastes 8:11

8:11 When a sentence is not executed at once against a crime,

the human heart is encouraged to do evil.

Ecclesiastes 2:23

2:23 For all day long his work produces pain and frustration,

and even at night his mind cannot relax!

This also is futile!