Mark 13:21

And then if anyone should say to you, Behold, here is the Christ, or, Behold, he is there, do not believe him;

Luke 21:8

Then he said, Take heed that ye not be deceived, for many shall come in my name, saying, I am; and the time draws near; therefore, go ye not after them.

Deuteronomy 13:1-3

When there arises among you a prophet, or a dreamer of dreams, and gives thee a sign or a wonder,

Matthew 24:5

For many shall come in my name, saying, I am the Christ, and shall deceive many.

Matthew 24:23-25

Then if any man shall say unto you, Behold, here is the Christ, or there, believe it not.

Luke 17:23-24

And they shall say to you, Behold it here, or, Behold it there; do not go, nor follow them.

John 5:43

I have come in my Father's name, and ye receive me not; if another shall come in his own name, him ye will receive.

Treasury of Scripture Knowledge

Summary

And then if any man shall say to you, Lo, here is Christ; or, lo, he is there; believe him not:

Bible References

General references

Deuteronomy 13:1
When there arises among you a prophet, or a dreamer of dreams, and gives thee a sign or a wonder,
Matthew 24:5
For many shall come in my name, saying, I am the Christ, and shall deceive many.
Luke 17:23
And they shall say to you, Behold it here, or, Behold it there; do not go, nor follow them.
Luke 21:8
Then he said, Take heed that ye not be deceived, for many shall come in my name, saying, I am; and the time draws near; therefore, go ye not after them.
John 5:43
I have come in my Father's name, and ye receive me not; if another shall come in his own name, him ye will receive.