Luke 21:8

And He replied, "Pay attention, so that you are not led astray [from the truth]. For many [false teachers] will come, claiming to be me, and saying, 'I am [the Christ],' and 'The time is near.' [But] do not go after them.

Matthew 3:2

"You must repent [i.e., change your hearts and lives], for the kingdom of heaven will soon be here."

Matthew 4:17

From that time onward Jesus began to preach, saying, "You people [must] repent [i.e., change your hearts and lives], for the kingdom of heaven is near."

Ephesians 5:6

Do not let anyone deceive you with empty words, for because of such things, the wrath of God will fall upon people who are disobedient [to Him].

2 Thessalonians 2:3

Do not allow anyone to deceive you in any way, for it will not occur until the rebellion comes first and the man of lawlessness becomes evident. [Note: This "rebellion" refers to a significant falling away from the teaching and practice of true Christianity (See I Tim. 4:1), characterized by the rise of an authoritarian religious leader]. This man is doomed to be destroyed

Matthew 24:4-5

And Jesus answered them, "Pay attention so that no one leads you astray [from the truth].

Matthew 24:11

And many false prophets will appear and will lead many people away [from the truth].

Matthew 24:23-25

Then if anyone says to you, 'Look, here is Christ,' or 'There [he is],' do not believe him.

Mark 13:5-6

Then Jesus began saying to them, "Pay attention so that no one leads you astray [i.e., from the truth].

Mark 13:21-23

And then if anyone says to you, 'Look, here is Christ,' or 'Look, there He is,' do not believe him.

Luke 17:23

And people will be saying to you, 'Look, there [He is]! Look, here [He is]! Do not leave or follow after them.

John 5:43

I have come in my Father's name [i.e., by His authority] and you do not accept me. If someone else comes in his own name [i.e., by his own authority], you will accept him.

John 8:24

Therefore I said to you that you will die [condemned] in your sins. For unless you believe that I am [the Messiah, who came from above. See verse 23], you will die [condemned] in your sins."

Acts 5:36-37

For [remember that] some time ago Theudas appeared, claiming to be someone [important], and that about four hundred people rallied [to his cause], but he was killed and all his men left him and nothing ever came of it.

Acts 8:9-10

But a certain man named Simon, from there in Samaria, who had been amazing the people with his magical powers, was claiming to be someone great.

2 Corinthians 11:13-15

For such men are false apostles; they are deceitful workers, who disguise themselves as [true] apostles of Christ.

2 Thessalonians 2:9-11

The coming [of this lawless person] is according to the work of Satan, [and will be] attended by all kinds of powerful [i.e., miraculous] signs and false wonders,

2 Timothy 3:13

But evil people and impostors will go from bad to worse [in their behavior], deceiving people and being deceived by them.

1 John 4:1

Loved ones, do not believe [the message of] every spirit [i.e., every person claiming to be a teacher], but test the spirits [i.e., require proof that they and their message are genuine] to see whether they represent God [or not], because many false prophets have begun circulating throughout the world.

2 John 1:7

For many deceivers have begun circulating in the world; they are those who do not confess that Jesus Christ has come [to earth] in a physical body. Such a person is the deceiver and the antichrist [See I John 2:18f].

Revelation 1:3

The person who reads this [book] and those who listen to the words of this prophecy and who obey what is written in it are blessed, for the time [when some of it will occur] is near. [See verse 1].

Revelation 12:9

Then the great dragon was thrown out [of heaven]; he is the snake from ancient times who is [also] called "the Devil," and "Satan," the deceiver of the entire world. He was thrown down to earth along with his angels.

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 [i.e., by His authority] and you do not accept me. If someone else comes in his own name [i.e., by his own authority], you will accept him.
Acts 5:36
For [remember that] some time ago Theudas appeared, claiming to be someone [important], and that about four hundred people rallied [to his cause], but he was killed and all his men left him and nothing ever came of it.
Acts 8:9
But a certain man named Simon, from there in Samaria, who had been amazing the people with his magical powers, was claiming to be someone great.

And the time

Matthew 3:2
"You must repent [i.e., change your hearts and lives], for the kingdom of heaven will soon be here."
Matthew 4:17
From that time onward Jesus began to preach, saying, "You people [must] repent [i.e., change your hearts and lives], for the kingdom of heaven is near."
Revelation 1:3
The person who reads this [book] and those who listen to the words of this prophecy and who obey what is written in it are blessed, for the time [when some of it will occur] is near. [See verse 1].

General references

Matthew 24:23
Then if anyone says to you, 'Look, here is Christ,' or 'There [he is],' do not believe him.
Mark 13:21
And then if anyone says to you, 'Look, here is Christ,' or 'Look, there He is,' do not believe him.
Luke 17:23
And people will be saying to you, 'Look, there [He is]! Look, here [He is]! Do not leave or follow after them.