Ecclesiastes: 1:2, 12-14; 2:18-23
Ecclesiastes 1:2 2“Meaningless! Meaningless!” says the Teacher. “Utterly meaningless! Everything is meaningless.”
Ecclesiastes 1:12-14 12I, the Teacher, was king over Israel in Jerusalem. 13I applied my mind to study and to explore by wisdom all that is done under the heavens. What a heavy burden God has laid on mankind! 14I have seen all the things that are done under the sun; all of them are meaningless, a chasing after the wind.
Ecclesiastes 2:18-23 18I hated all the things I had toiled for under the sun, because I must leave them to the one who comes after me. 19And who knows whether that person will be wise or foolish? Yet they will have control over all the fruit of my toil into which I have poured my effort and skill under the sun. This too is meaningless. 20So my heart began to despair over all my toilsome labor under the sun. 21For a person may labor with wisdom, knowledge and skill, and then they must leave all they own to another who has not toiled for it. This too is meaningless and a great misfortune. 22What do people get for all the toil and anxious striving with which they labor under the sun? 23All their days their work is grief and pain; even at night their minds do not rest. This too is meaningless.