Jeremiah 14:14-15

14And the Lord said to me: "The prophets are prophesying lies in my name. I did not send them, nor did I command them or speak to them. They are prophesying to you a lying vision, worthless divination, and the deceit of their own minds.

15Therefore thus says the Lord concerning the prophets who prophesy in my name although I did not send them, and who say, 'Sword and famine shall not come upon this land': By sword and famine those prophets shall be consumed.