'Falsity' in the Bible

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

Thus says the Lord of hosts,“Do not listen to the words of the [false] prophets who prophesy to you.They are teaching you worthless things and are leading you into futility;They speak a vision of their own mind and imaginationAnd not [truth] 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.