Jeremiah 29:21

This is what the Lord of armies, the God of Israel, has said about Ahab, the son of Kolaiah, and about Zedekiah, the son of Maaseiah, who are saying to you what is false in my name: See, I will give them up into the hands of Nebuchadrezzar, king of Babylon, and he will put them to death before your eyes.

Jeremiah 14:14-15

Then the Lord said to me, The prophets say false words in my name, and I gave them no orders, and I said nothing to them: what they say to you is a false vision and wonder-working words without substance, the deceit of their hearts.

Jeremiah 29:8-9

For this is what the Lord of armies, the God of Israel, has said: Do not let yourselves be tricked by the prophets who are among you, and the readers of signs, and give no attention to their dreams which they may have;

Lamentations 2:14

The visions which your prophets have seen for you are false and foolish; they have not made clear to you your sin so that your fate might be changed: but they have seen for you false words, driving you away.

Treasury of Scripture Knowledge

Summary

Thus saith the LORD of hosts, the God of Israel, of Ahab the son of Kolaiah, and of Zedekiah the son of Maaseiah, which prophesy a lie unto you in my name; Behold, I will deliver them into the hand of Nebuchadrezzar king of Babylon; and he shall slay them before your eyes;

Bible References

Which

Jeremiah 29:8
For this is what the Lord of armies, the God of Israel, has said: Do not let yourselves be tricked by the prophets who are among you, and the readers of signs, and give no attention to their dreams which they may have;
Jeremiah 14:14
Then the Lord said to me, The prophets say false words in my name, and I gave them no orders, and I said nothing to them: what they say to you is a false vision and wonder-working words without substance, the deceit of their hearts.
Lamentations 2:14
The visions which your prophets have seen for you are false and foolish; they have not made clear to you your sin so that your fate might be changed: but they have seen for you false words, driving you away.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain