Mark 13:6
Many will come in my name, saying, 'I am he,' and they will mislead many.
Mark 13:22
For false messiahs and false prophets will appear and perform signs and wonders to deceive, if possible, the elect.
Jeremiah 14:14
Then the Lord said to me, "Those prophets are prophesying lies while claiming my authority! I did not send them. I did not commission them. I did not speak to them. They are prophesying to these people false visions, worthless predictions, and the delusions of their own mind.
Jeremiah 23:21-25
I did not send those prophets. Yet they were in a hurry to give their message. I did not tell them anything. Yet they prophesied anyway.
Matthew 24:5
For many will come in my name, saying, 'I am the Christ,' and they will mislead many.
Matthew 24:11
And many false prophets will appear and deceive many,
Matthew 24:23-24
Then if anyone says to you, 'Look, here is the Christ!' or 'There he is!' do not believe him.
John 5:43
I have come in my Father's name, and you do not accept me. If someone else comes in his own name, you will accept him.
John 8:24
Thus I told you that you will die in your sins. For unless you believe that I am he, you will die in your sins."
Acts 5:36-39
For some time ago Theudas rose up, claiming to be somebody, and about four hundred men joined him. He was killed, and all who followed him were dispersed and nothing came of it.
1 John 4:1
Dear friends, do not believe every spirit, but test the spirits to determine if they are from God, because many false prophets have gone out into the world.