Ecclesiastes 3:9

³What does man gain from all his labor in which he labors under the sun?

²³In all hard work there is profit, but the talk of the lips leads only to poverty.

¹⁶This also is a grievous evil, that in all points as he came, so shall he go. And what profit does he have who labors for the wind?

²²For what does a man have of all his labor and of the striving of his heart, in which he labors under the sun? ²³For all his days are sorrows, and his travail is grief; yes, even in the night his heart takes no rest. This also is vanity.

¹¹Then I looked at all the works that my hands had worked, and at the labor that I had labored to do; and behold, all was vanity and a chasing after wind, and there was no profit under the sun.

²⁶For what will it profit a man if he gains the whole world and forfeits his life? Or what will a man give in exchange for his life?