1 John 4:1

Beloved, do not believe every spirit, but examine the spirits, whether they are of God, because many FALSE prophets have gone out into the world.

2 Peter 2:1

But FALSE prophets also developed among the people, as FALSE teachers will also be among you, who will sneak in pernicious denominations, even denying the Master who bought them, bringing upon themselves swift destruction.

1 John 2:18

Children, it is the last hour. And as ye heard that the antichrist comes, and now many antichrists have developed, from which we know that it is the last hour.

1 Thessalonians 5:21

but examine all things. Hold firm the good.

Luke 12:57

And also why do ye not judge yourselves what is right?

Acts 17:11

But these were more noble than those in Thessalonica, who received the word with all willingness, examining the Scriptures daily, if it has these things this way.

1 Corinthians 12:10

and to another, workings of miracles, and to another, prophecy, and to another, discerning of spirits, and to a different man, kinds of tongues, and to another, the interpretation of tongues.

1 Corinthians 14:29

And let two or three prophets speak, and let the other men pass judgment.

1 Timothy 4:1

But the Spirit says expressly that in latter times some will depart from the faith, giving heed to deceitful spirits and doctrines of demons,

2 John 1:7

Because many deceivers have gone forth into the world, those not acknowledging Jesus Christ coming in flesh. This is the deceiver and the antichrist.

Revelation 2:2

I know thy works, and thy toil, and thy perseverance, and that thou cannot tolerate evil, and thou examined those who say themselves to be apostles, and are not, and found them false.

Deuteronomy 13:1-5

If there arise in the midst of thee a prophet, or a dreamer of dreams, and he gives thee a sign or a wonder,

Proverbs 14:15

A simple man believes every word, but the prudent man looks well to his going.

Jeremiah 5:31

The prophets prophesy falsely, and the priests bear rule by their means. And my people love to have it so. And what will ye do in the end thereof?

Jeremiah 29:8-9

For thus says LORD of hosts, the God of Israel: Let not your prophets who are in the midst of you, and your diviners, deceive you, nor hearken ye to your dreams which ye cause to be dreamed.

Matthew 7:15-16

But beware of FALSE prophets, who come to you in sheep's clothing, but inwardly are predatory wolves.

Matthew 24:4-5

And having answered, Jesus said to them, See that not any man may lead you astray.

Matthew 24:23-26

Then if any man should say to you, Lo, here is the Christ, or, Here, believe ye not.

Mark 13:21

And then if any man should say to you, Lo, here is the Christ, or, Lo, there, do not believe.

Luke 21:8

And he said, Watch that ye may not be led astray, for many will come in my name, saying, I am, and, The time has come near. Go ye not therefore after them.

Acts 20:29

For I know this, that after my departure grievous wolves will enter in among you, not sparing the flock.

Romans 16:18-19

For such kind serve not our Lord Jesus Christ, but their own belly. And by their smooth words and elegant speech they deceive the hearts of the naive.

2 Timothy 3:13

But evil men and impostors will go forward to worse, leading astray and being led astray.

Treasury of Scripture Knowledge

Summary

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

Bible References

Believe not

Deuteronomy 13:1
If there arise in the midst of thee a prophet, or a dreamer of dreams, and he gives thee a sign or a wonder,
Proverbs 14:15
A simple man believes every word, but the prudent man looks well to his going.
Jeremiah 5:31
The prophets prophesy falsely, and the priests bear rule by their means. And my people love to have it so. And what will ye do in the end thereof?
Jeremiah 29:8
For thus says LORD of hosts, the God of Israel: Let not your prophets who are in the midst of you, and your diviners, deceive you, nor hearken ye to your dreams which ye cause to be dreamed.
Matthew 7:15
But beware of FALSE prophets, who come to you in sheep's clothing, but inwardly are predatory wolves.
Matthew 24:4
And having answered, Jesus said to them, See that not any man may lead you astray.
Romans 16:18
For such kind serve not our Lord Jesus Christ, but their own belly. And by their smooth words and elegant speech they deceive the hearts of the naive.
2 Peter 2:1
But FALSE prophets also developed among the people, as FALSE teachers will also be among you, who will sneak in pernicious denominations, even denying the Master who bought them, bringing upon themselves swift destruction.

Try

Luke 12:57
And also why do ye not judge yourselves what is right?
Acts 17:11
But these were more noble than those in Thessalonica, who received the word with all willingness, examining the Scriptures daily, if it has these things this way.
Romans 16:19
For your obedience reached to all men. Therefore I rejoice over you, but I want you to be indeed wise in the good and pure in the evil.
1 Corinthians 14:29
And let two or three prophets speak, and let the other men pass judgment.
1 Thessalonians 5:21
but examine all things. Hold firm the good.
Revelation 2:2
I know thy works, and thy toil, and thy perseverance, and that thou cannot tolerate evil, and thou examined those who say themselves to be apostles, and are not, and found them false.

General references

Deuteronomy 18:21
And if thou say in thy heart, How shall we know the word which LORD has not spoken?
Proverbs 19:27
To err from the words of knowledge, cease, my son, to hear instruction.
Matthew 24:11
And many FALSE prophets will arise, and will lead many astray.
John 8:47
He who is of God hears the sayings of God. Because of this ye do not hear, because ye are not of God.
1 Corinthians 14:32
And the spirits of prophets are subject to prophets,