1 John 4:1
Dear friends, do not believe every spirit, but test the spirits [to determine] if they are from God, because many false prophets have gone out into the world.
2 Peter 2:1
But there were also false prophets among the people, as there will be false teachers among you also, who will bring in {destructive heresies}, even denying the Master who bought them, [thus] bringing on themselves swift destruction.
1 John 2:18
Children, it is the last hour, and just as you have heard that antichrist is coming, even now many antichrists have arisen, by which we know that it is the last hour.
1 Thessalonians 5:21
but examine all [things]; hold fast to [what is] good.
Luke 12:57
And why do you not also judge for yourselves [what is] right?
Acts 17:11
Now these were more open-minded than those in Thessalonica. {They} accepted the message with all eagerness, examining the scriptures every day [to see] if these [things] were so.
1 Corinthians 12:10
to another {miraculous powers}, to another prophecy, to another distinguishing of spirits, to another kinds of tongues, to another interpretation of tongues.
1 Corinthians 14:29
Let two or three prophets speak, and the others evaluate.
1 Timothy 4:1
Now the Spirit explicitly says that in the last times some will depart from the faith, paying attention to deceitful spirits and teachings of demons,
2 John 1:7
For many deceivers have gone out into the world, those who do not confess Jesus Christ coming in [the] flesh. This person is the deceiver and the antichrist!
Revelation 2:2
'I know your works, and your labor and patient endurance, and that you are not able to tolerate evil, and you put to the test those who call themselves apostles and are not, and you found them [to be] false.
Deuteronomy 13:1-5
"If a prophet stands up in your midst or a dreamer of dreams and he gives to you a sign or wonder,
Proverbs 14:15
The simple will believe every word, but the clever will consider his step.
Jeremiah 5:31
The prophets prophesy {falsely}, and the priests rule {by their own authority}, and my people love [it] so much. But what will you do {when the end comes}?
Jeremiah 29:8-9
For thus says Yahweh of hosts, the God of Israel, 'Do not let your prophets who [are] in your midst, and your diviners, deceive you, and you must not listen to your dreams that you [are] causing [them] to dream.
Matthew 7:15-16
"Beware of false prophets who come to you in sheep's clothing, but inside are ravenous wolves.
Matthew 24:4-5
And Jesus answered [and] said to them, "Watch out that no one deceives you!
Matthew 24:23-26
"At that time if anyone should say to you, 'Behold, here [is] the Christ,' or 'Here [he is],' do not believe [him]!
Mark 13:21
"And at that time if anyone should say to you, "Behold, here [is] the Christ,' 'Behold, there [he is],' do not believe [him]!
Luke 21:8
And he said, Watch out that you are not deceived! For many will come in my name, saying, 'I am [he],' and 'The time is near!' Do not go after them!
Acts 20:29
I know that after my departure fierce wolves will come in among you, not sparing the flock.
Romans 16:18-19
For such people do not serve our Lord Christ, but their own stomach, and by smooth speech and flattery they deceive the hearts of the unsuspecting.
2 Timothy 3:13
But evil people and imposters will progress to the worse, deceiving and being deceived.