Mark 13:22
for false Christs and false prophets will rise and perform signs and wonders to mislead the elect if they can.
Matthew 24:5
for many will come in my name, saying 'I am the Christ,' and they will mislead many.
Matthew 24:11
Many false prophets will rise and mislead many.
Matthew 24:23-24
If anyone tells you at that time, 'Here is the Christ!' or, 'there he is!' do not believe it;
John 5:43
here am I, come in the name of my Father, and you will not accept me: let someone else come in his own name, and you will accept him!
John 8:24
So I told you, you would die in your sins; for unless you believe who I am, you will die in your sins."
Acts 5:36-39
In days gone by Theudas started up, claiming to be a person of importance; a number of men, about four hundred of them, rallied to him, but he was slain, and all his followers were dispersed and wiped out.
1 John 4:1
Do not believe every spirit, beloved, but test the spirits to see if they come from God; for many false prophets have emerged in the world.