'Weariness' in the Bible

The Lord of armies has said: The wide walls of Babylon will be completely uncovered and her high doorways will be burned with fire; so peoples keep on working for nothing, and the weariness of nations comes to an end in the smoke.

And you are to say, So Babylon will go down, never to be lifted up again, because of the evil which I will send on her: and weariness will overcome them. So far, these are the words of Jeremiah.