Luke 21:8

Then he said, Take heed that ye be not deluded: for many will come in my name, saying, I am he; and the period approaches: go not therefore after them.

Matthew 3:2

and saying, Repent, for the kingdom of heaven is nigh.

Matthew 4:17

From that time Jesus began to preach, and to say, Repent, for the kingdom of heaven is approaching.

Ephesians 5:6

Let no man deceive you with vain words: for because of these things, the wrath of God cometh on the children of disobedience.

2 Thessalonians 2:3

Let no man deceive you in any way: because that cannot be till the apostasy come first, and the man of sin appear, the son of perdition,

Matthew 24:4-5

And Jesus answering said unto them, Beware that no man deceive you.

Matthew 24:11

And many false prophets shall arise, and shall deceive many.

Matthew 24:23-25

Then if any man say unto you, Lo! here is the Messiah, or there; believe it not:

Mark 13:5-6

Then Jesus answering them, began to say, Beware that no man deceive you:

Mark 13:21-23

And then, if any man say to you, Lo, here is the Messiah! or, lo there! believe it not.

Luke 17:23

And they will say to you, Lo here! and lo there! go not after them, nor follow them.

John 5:43

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

John 8:24

I said therefore unto you, that ye shall die in your sins: for if ye believe not that I am, ye shall die in your sins.

Acts 5:36-37

For before these days arose Theudas, saying that he himself was a singular personage: to whom a number of men, about four hundred, attached themselves: who was taken off; and as many as obeyed him, were dispersed, and came to nothing.

Acts 8:9-10

But a certain man, named Simon, lived previously in that city, who practised magic, and astonished the nation of Samaria, giving out himself as an extraordinary great personage:

2 Corinthians 11:13-15

For such are fake apostles, deceitful labourers, transforming themselves into apostles of Christ.

2 Thessalonians 2:9-11

whose appearing is known by fanatical energy, displayed in all power, and signs, and lying miracles,

2 Timothy 3:13

But wicked men and impostors will proceed from bad to worse, deceiving and deceived.

1 John 4:1

BELOVED, believe not every pretender to inspiration, but bring these spirits to the trial whether they are of God; because many false prophets are gone forth into the world.

2 John 1:7

For many deceivers are gone out into the world, who do not confess Jesus the Messiah as come in the flesh. Such a one is a deceiver and an antichrist.

Revelation 1:3

Blessed is he that readeth, and they who hear the words of this prophecy, and observe the things which are written therein: for the time is at hand.

Revelation 12:9

And the great dragon was cast out, that old serpent, who is called the Devil, and Satan, who deceiveth the whole world: he was cast out into the earth, and his angels were cast out with him.

Treasury of Scripture Knowledge

Summary

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

General references

Bible References

For

John 5:43
I have come in my Father's name, and ye receive me not: if another come in his own name, him ye will receive.
Acts 5:36
For before these days arose Theudas, saying that he himself was a singular personage: to whom a number of men, about four hundred, attached themselves: who was taken off; and as many as obeyed him, were dispersed, and came to nothing.
Acts 8:9
But a certain man, named Simon, lived previously in that city, who practised magic, and astonished the nation of Samaria, giving out himself as an extraordinary great personage:

And the time

Matthew 3:2
and saying, Repent, for the kingdom of heaven is nigh.
Matthew 4:17
From that time Jesus began to preach, and to say, Repent, for the kingdom of heaven is approaching.
Revelation 1:3
Blessed is he that readeth, and they who hear the words of this prophecy, and observe the things which are written therein: for the time is at hand.

General references

Matthew 24:23
Then if any man say unto you, Lo! here is the Messiah, or there; believe it not:
Mark 13:21
And then, if any man say to you, Lo, here is the Messiah! or, lo there! believe it not.
Luke 17:23
And they will say to you, Lo here! and lo there! go not after them, nor follow them.