7 Bible Verses about Toiling In Vain

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

What profit hath a man of all his labour which he taketh under the sun?

For what hath man of all his labour, and of the vexation of his heart, wherein he hath laboured under the sun?

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 labour in vain, and the folk in the fire, and they shall be weary.

They have sown wheat, but shall reap thorns: they have put themselves to pain, but shall not profit: and they shall be ashamed of your revenues because of the fierce anger of the LORD.

There is one alone, and there is not a second; yea, he hath neither child nor brother: yet is there no end of all his labour; neither is his eye satisfied with riches; neither saith he, For whom do I labour, and bereave my soul of good? This is also vanity, yea, it is a sore travail.

Behold, is it not of the LORD of hosts that the people shall labour in the very fire, and the people shall weary themselves for very vanity?