'Labor In Vain' in the Bible

If I am wicked, why then do I labor in vain?

A Song of degrees for Solomon. Except the LORD shall build the house, they labor in vain that build it: except the LORD shall keep the city, the watchman waketh in vain.

They shall not labor in vain, nor bring forth for trouble; for they are the seed of the blessed of the LORD, and their offspring with them.

Thus saith the LORD of hosts; The broad walls of Babylon shall be utterly broken, and her high gates shall be burned with fire; and the people shall labor in vain, and the people in the fire, and they shall be weary.

I am afraid of you, lest I have bestowed upon you labor in vain.