Ecclesiastes 8:16
When I gave my heart to know wisdom, and to see the business that is done on the earth; for neither day nor night do men see sleep with their 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 which is done under the heavens. It is a sad task God has given to the sons of men to be humbled by it.
Ecclesiastes 2:23
For all his days are sorrows, and his labor sadness; yea, his heart does not take rest in the night. This is also vanity.
Genesis 31:40
I was there; in the day the heat consumed me, and the frost 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 son nor brother; yet there is no end to all his labor; and his eyes are not satisfied with riches; and he says, For whom do I labor and take good from my soul? This is also vanity. Yes, it is an evil business.
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 set 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 does not know what shall be; for who can tell him when it shall be?
Ecclesiastes 8:9
All this I have seen, and I gave my heart to every work that is done under the sun. There is a time in which one man rules over another to his own hurt.