Matthew 24:5

24:5 For many will come in my name, saying, ‘I am the Christ,’ and they will mislead many.

Matthew 24:23-24

24:23 Then if anyone says to you, ‘Look, here is the Christ!’ or ‘There he is!’ do not believe him. 24:24 For false messiahs and false prophets will appear and perform great signs and wonders to deceive, if possible, even the elect.