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!

Ecclesiastes 8:13

8:13 But it will not go well with the wicked,

nor will they prolong their days like a shadow,

because they do not stand in fear before God.

Ecclesiastes 8:16

Limitations of Human Wisdom

8:16 When I tried to gain wisdom

and to observe the activity on earth –

even though it prevents anyone from sleeping day or night –