7 Bible Verses about Toiling In Vain

I am afraid I may have labored over you in vain.

What does man gain by all the toil at which he toils under the sun?

What has a man from all the toil and striving of heart with which he toils beneath the sun?

"Thus says the LORD of hosts: The broad wall of Babylon shall be leveled to the ground, and her high gates shall be burned with fire. The peoples labor for nothing, and the nations weary themselves only for fire."

They have sown wheat and have reaped thorns; they have tired themselves out but profit nothing. They shall be ashamed of their harvests because of the fierce anger of the LORD."

one person who has no other, either son or brother, yet there is no end to all his toil, and his eyes are never satisfied with riches, so that he never asks, "For whom am I toiling and depriving myself of pleasure?" This also is vanity and an unhappy business.

Behold, is it not from the LORD of hosts that peoples labor merely for fire, and nations weary themselves for nothing?