Jeremiah 29:8-9, 31

For thus says the LORD of hosts, the God of Israel, ‘Do not let your [false] prophets who are among you and your diviners deceive you; pay no attention and attach no significance to the dreams which they dream or to yours, for they prophesy falsely to you in My Name. I have not sent them,’ says the LORD.

“Send [this message] to all the exiles, saying, ‘Thus says the LORD concerning Shemaiah of Nehelam, “Because Shemaiah has prophesied to you, although I did not send him, and he has made you trust in a lie,”