Luke 21:8

he answered, take care, that you be not seduced: for many shall come in my name, saying, I am the Christ. it won't be long e'er this happens, therefore do not follow them.

Matthew 3:2

and saying, "Repent ye: for the kingdom of the Messiah draws nigh."

Matthew 4:17

from that time Jesus began to preach, "Repent, said he, for the kingdom of the Messiah draws nigh."

Ephesians 5:6

let no man mislead you by vain reasonings: for it is for these vices, that the wrath of God lights upon the incredulous.

2 Thessalonians 2:3

don't be led into any mistake, because the previous rebellion does not yet appear, nor the man of sin throw off the disguise, that offspring of perdition:

Matthew 24:4-5

Jesus answered them, take care not to be deceived by any one:

Matthew 24:11

many false prophets shall rise, and shall deceive many.

Matthew 24:23-25

Then if any shall cry, the Messiah is here, or he is there: give no credit to it.

Mark 13:5-6

Jesus answer'd by saying, take care not to let any one impose upon you;

Mark 13:21-23

Then if any one shall say to you, Christ is here, or, he is there, don't believe it.

Luke 17:23

they will tell you, here he is, or, he is there: but don't go out to follow them;

John 5:43

I am come in my father's name, and you receive me not: if another should come in his own name, him you will receive.

John 8:24

therefore I said to you, that ye shall die in your sins: for if you don't believe me to be what I am, ye shall die in your sins.

Acts 5:36-37

for some time ago one Theudas started up, pretending to be something extraordinary, who was join'd indeed by about four hundred men: but he was no sooner put to death, than his followers all dispers'd, and were reduc'd to nothing.

Acts 8:9-10

One Simon was then resident in that place, who pretended to be something extra-ordinary, and by his magical practices had so enchanted the people of Samaria,

2 Corinthians 11:13-15

for these are false apostles, deceitful workmen, disguised so as to pass for true apostles.

2 Thessalonians 2:9-11

who by the instigation of satan will make his parade with various arts, with fallacious signs and prodigies,

2 Timothy 3:13

as for these impious impostors, they will go on from bad to worse, seducing others, and deluding themselves.

1 John 4:1

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

2 John 1:7

For there are many impostors started up in the world, who will not own that Jesus Christ was incarnate. such a one is an impostor and an anti-christ.

Revelation 1:3

Happy is he that reads, and attends to the words of this prophecy, and observes the matter therein contain'd: for the time draws nigh.

Revelation 12:9

the great dragon was cast out, that old serpent, call'd the devil or satan, which deceiveth the whole world: he was cast down to the earth, and his angels were precipitated 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 am come in my father's name, and you receive me not: if another should come in his own name, him you will receive.
Acts 5:36
for some time ago one Theudas started up, pretending to be something extraordinary, who was join'd indeed by about four hundred men: but he was no sooner put to death, than his followers all dispers'd, and were reduc'd to nothing.
Acts 8:9
One Simon was then resident in that place, who pretended to be something extra-ordinary, and by his magical practices had so enchanted the people of Samaria,

And the time

Matthew 3:2
and saying, "Repent ye: for the kingdom of the Messiah draws nigh."
Matthew 4:17
from that time Jesus began to preach, "Repent, said he, for the kingdom of the Messiah draws nigh."
Revelation 1:3
Happy is he that reads, and attends to the words of this prophecy, and observes the matter therein contain'd: for the time draws nigh.

General references

Matthew 24:23
Then if any shall cry, the Messiah is here, or he is there: give no credit to it.
Mark 13:21
Then if any one shall say to you, Christ is here, or, he is there, don't believe it.
Luke 17:23
they will tell you, here he is, or, he is there: but don't go out to follow them;