'Futility' in the Bible

Thus says the Lord,“What injustice or unrighteousness did your fathers find in Me,That they have wandered far from MeAnd [habitually] walked after emptiness and futility and became empty?

But they are altogether irrational and stupid and foolishIn their discipline of delusion—their idol is [only] wood [it is ridiculous, empty and worthless]!

Then the Lord said to me, “The prophets are prophesying falsehood in My name. I have neither sent them nor commanded them nor spoken to them; they are prophesying to you a false vision, divination, futility and the deception of their own minds.

O Lord, my strength and my stronghold,And my refuge in the day of distress,To You the nations will comeFrom the ends of the earth and say,“Our fathers have inherited nothing but falsehood,Futility and things of no profit.”

Thus says the Lord of hosts,“Do not listen to the words of the prophets who are prophesying to you.They are leading you into futility;They speak a vision of their own imagination,Not from the mouth of the Lord.

They are worthless (empty, false, futile), a work of delusion and worthy of derision;In the time of their inspection and punishment they will perish.