Beloved, do not believe every spirit, but test the spirits to see whether they are from God. For many false prophets have gone out into the world. 1 John 4:1

Then the Lord said, “These prophets are telling lies in my name. I did not send them or tell them to speak. I did not give them any messages. They prophesy of visions and revelations they have never seen or heard. They speak foolishness made up in their own lying hearts. Jeremiah 14:1