Ecclesiastes 2:22
For what does a man get for all the labor and endeavors at which he toils under the sun?

Ecclesiastes 3:9
What does the worker gain from his toil?

Ecclesiastes 5:16
This too is a grievous evil: Exactly as a man is born, so he will depart. What does he gain as he toils for the wind?

Proverbs 23:4, 5
Do not wear yourself out to get rich; be wise enough to restrain yourself. . . .

Isaiah 55:2
Why spend money on that which is not bread, and your labor on that which does not satisfy? Listen carefully to Me, and eat what is good, and your soul will delight in the richest of foods.

Habakkuk 2:13, 18
Is it not indeed from the LORD of Hosts that the labor of the people only feeds the fire, and nations weary themselves in vain? . . .

Matthew 16:26
What will it profit a man if he gains the whole world, yet forfeits his soul? Or what can a man give in exchange for his soul?

Mark 8:36, 37
What does it profit a man to gain the whole world, yet forfeit his soul? . . .

John 6:27
Do not work for food that perishes, but for food that endures to eternal life, which the Son of Man will give you. For on Him God the Father has placed His seal of approval."

under

Ecclesiastes 2:11, 19
Yet when I considered all the works that my hands had accomplished and what I had toiled to achieve, I found everything to be futile, a pursuit of the wind; there was nothing to be gained under the sun. . . .

Ecclesiastes 4:3, 7
But better than both is he who has not yet existed, who has not seen the evil that is done under the sun. . . .

Ecclesiastes 5:18
Here is what I have seen to be good and fitting: to eat and drink, and to find satisfaction in all the labor one does under the sun during the few days of life that God has given him--for this is his lot.

Ecclesiastes 6:12
For who knows what is good for a man during the few days he passes through his fleeting life like a shadow? Who can tell a man what will come after him under the sun?

Ecclesiastes 7:11
Wisdom, like an inheritance, is good, and it benefits those who see the sun.

Ecclesiastes 8:15-17
So I commended the enjoyment of life, because there is nothing better for a man under the sun than to eat and drink and be merry. For this joy will accompany him in his labor during the days of his life that God gives him under the sun. . . .

Ecclesiastes 9:3, 6, 13
This is an evil in everything that is done under the sun: There is one fate for everyone. Furthermore, the hearts of men are full of evil and madness while they are alive, and afterward they join the dead. . . .