Ecclesiastes 8:16
When I applied my heart to know wisdom, and to see the business that is done upon the earth: (for also there is one who neither day nor night sees sleep with his eyes:)
Psalm 127:2
It is vain for you to rise up early, to sit up late, to eat the bread of sorrows: for so he gives his beloved sleep.
Ecclesiastes 1:13
And I gave my heart to seek and search out by wisdom concerning all things that are done under heaven: this severe burden has God given to the sons of man to be afflicted with.
Ecclesiastes 2:23
For all his days are sorrows, and his travail grief; yea, his heart takes not rest in the night. This is also vanity.
Genesis 31:40
Thus I was; in the day the heat consumed me, and the cold by night; and my sleep departed from my eyes.
Ecclesiastes 4:8
There is one alone, and there is not a second; yea, he has neither child nor brother: yet is there no end of all his labor; neither is his eye satisfied with riches; neither says he, For whom do I labor, and deprive my soul of good? This is also vanity, yea, it is a heavy travail.
Ecclesiastes 5:12
The sleep of a laboring man is sweet, whether he eats little or much: but the abundance of the rich will not allow him to sleep.
Ecclesiastes 7:25
I applied my heart to know, and to search, and to seek out wisdom, and the reason of things, and to know the wickedness of folly, even of foolishness and madness:
Ecclesiastes 8:7
For he knows not that which shall be: for who can tell him when it shall be?
Ecclesiastes 8:9
All this have I seen, and applied my heart unto every work that is done under the sun: there is a time in which one man rules over another to his own hurt.