Albert Barnes Commentary Jeremiah 23:32

"Behold, I am against them that prophesy lying dreams, saith Jehovah, and do tell them, and cause my people to err by their lies, and by their vain boasting: yet I sent them not, nor commanded them; neither do they profit this people at all, saith Jehovah." — Jeremiah 23:32 (ASV)

The third characteristic. See Jeremiah 23:25.

Lightness—vain, empty, talk.