Luke 21:8

And He said, See that you are not deceived. For many will come in my name, saying, I am He; and The time is at hand: go ye not after them.

Matthew 3:2

saying, Repent ye, for the kingdom of the heavens is at hand.

Matthew 4:17

From that time Jesus began to preach, and to say, Repent; for the kingdom of the heavens draweth nigh.

Ephesians 5:6

Let no one deceive you with empty words: for through these the wrath of God comes on the sons of disobedience.

2 Thessalonians 2:3

Let no one deceive you in any way: because unless there may first be an apostasy and the man of lawlessness may be revealed, the son of perdition,

Matthew 24:4-5

And Jesus responding said to them, See, lest any one may deceive you.

Matthew 24:11

And many false prophets will arise and deceive many.

Matthew 24:23-25

Then if any one may say to you, Lo, here is Christ, or, there: believe him not:

Mark 13:5-6

And Jesus began to say to them, See, lest any one may deceive you.

Mark 13:21-23

And if then one may say to you, Lo, here is Christ; or, Lo, there; believe not.

Luke 17:23

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

John 5:43

I have come in the name of my Father, and you do not receive me: if another may come in his own name, you will receive him.

John 8:24

Therefore I said to you, that you shall die in your sins: for if you may not believe that I am He, you shall die in your sins.

Acts 5:36-37

For before these days Theudas arose, saying that he was somebody, to whom a number of men, about four hundred, adhered, who were slain, and all, so many as confided in him, were dispersed, and came to nothing.

Acts 8:9-10

And a certain man, by name Simon, was formerly practicing magic in the city, and bewitching the nation of Samaria, saying that himself was some great man:

2 Corinthians 11:13-15

For such are false apostles, deceitful workers, transforming themselves into the apostles of Christ.

2 Thessalonians 2:9-11

whose coming is according to the energy of Satan in all power and signs and wonders of falsehood,

2 Timothy 3:13

But wicked men and seducers will wax worse and worse, deceiving and being deceived.

1 John 4:1

Beloved, believe not every spirit, but prove the spirits if they are of God: because many false prophets have gone out into the world.

2 John 1:7

Because many deceivers have gone out into the world, who do not confess that Jesus Christ is coming in the flesh; the same is the deceiver and the antichrist.

Revelation 1:3

Blessed is the one reading, and those hearing the word of the prophecy, and keeping the things which have been written in it: for the time is at hand.

Revelation 12:9

And the great dragon, the old serpent, the one called the devil, and Satan, the one deceiving the whole world, was cast out: 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 the name of my Father, and you do not receive me: if another may come in his own name, you will receive him.
Acts 5:36
For before these days Theudas arose, saying that he was somebody, to whom a number of men, about four hundred, adhered, who were slain, and all, so many as confided in him, were dispersed, and came to nothing.
Acts 8:9
And a certain man, by name Simon, was formerly practicing magic in the city, and bewitching the nation of Samaria, saying that himself was some great man:

And the time

Matthew 3:2
saying, Repent ye, for the kingdom of the heavens is at hand.
Matthew 4:17
From that time Jesus began to preach, and to say, Repent; for the kingdom of the heavens draweth nigh.
Revelation 1:3
Blessed is the one reading, and those hearing the word of the prophecy, and keeping the things which have been written in it: for the time is at hand.

General references

Matthew 24:23
Then if any one may say to you, Lo, here is Christ, or, there: believe him not:
Mark 13:21
And if then one may say to you, Lo, here is Christ; or, Lo, there; believe not.
Luke 17:23
And they will say to you, Lo, here! lo, there! go not away, nor follow them.