Deuteronomy 13:1-3

1If a prophet or aa dreamer of dreams arises among you and gives you a sign or a wonder, 2and bthe sign or wonder that he tells you comes to pass, and if he says, ‘Let us go after other gods,’ which you have not known, ‘and let us serve them,’ 3you shall not listen to the words of that prophet or that dreamer of dreams. For the Lord your God cis testing you, to know whether you love the Lord your God with all your heart and with all your soul.

Matthew 24:5

5For dmany will come in my name, saying, ‘I am ethe Christ,’ and they will lead many astray.

Matthew 24:23-25

23 fThen if anyone says to you, ‘Look, here is the Christ!’ orThere he is!’ do not believe it. 24For gfalse christs and hfalse prophets will arise and iperform great signs and wonders, jso as to lead astray, if possible, even the elect. 25See, kI have told you beforehand.

Luke 17:23-24

23 lAnd they will say to you, ‘Look, there!’ orLook, here!’ Do not go out or follow them. 24 mFor as the lightning flashes and lights up the sky from one side to the other, so will the Son of Man be nin his day.
Some manuscripts omit  in his day

Luke 21:8

8And he said, pSee that you are not led astray. For qmany will come in my name, saying, rI am he!’ and, s‘The time is at hand!’ Do not go after them.

John 5:43

43I have come tin my Father’s name, and uyou do not receive me. vIf another comes in his own name, you will receive him.
Copyright information for ESV