Bible Verses About Vanity: Worldly labour is

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

Then I saw all labor and every skilful work, that for this a man is envied of his neighbor. This also is vanity and a striving after wind.