Jeremiah 23:16

Thus saith the LORD of hosts, Hearken not to the words of the prophets that prophesy to you: they make you vain: they speak a vision of their own heart, and not from the mouth of the LORD.

Jeremiah 14:14

Then the LORD said to me, The prophets prophesy lies in my name: I have not sent them, neither have I commanded them, neither spoken to them: they prophesy to you a false vision and divination, and a thing of naught, and the deceit of their heart.

Jeremiah 27:9-10

Therefore hearken ye not to your prophets, nor to your diviners, nor to your dreamers, nor to your enchanters, nor to your sorcerers, who speak to you, saying, Ye shall not serve the king of Babylon:

Matthew 7:15

Beware of false prophets, who come to you in sheep's clothing, but inwardly they are ravening wolves.

Jeremiah 23:21

I have not sent these prophets, yet they ran: I have not spoken to them, yet they prophesied.

Jeremiah 23:26

How long shall this be in the heart of the prophets that prophesy lies? yes, they are prophets of the deceit of their own heart;

Jeremiah 27:14-17

Therefore hearken not to the words of the prophets that speak to you, saying, Ye shall not serve the king of Babylon; for they prophesy a lie to you.

Ezekiel 13:3

Thus saith the Lord GOD; Woe to the foolish prophets, that follow their own spirit, and have seen nothing!

Ezekiel 13:6

They have seen vanity and lying divination, saying, The LORD saith: and the LORD hath not sent them: and they have made others to hope that they would confirm the word.

2 Corinthians 11:13-15

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

Galatians 1:8-9

But though we, or an angel from heaven, should preach any other gospel to you than that which we have preached to you, let him be accursed.

1 John 4:1

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

2 Kings 17:15

And they rejected his statutes, and his covenant that he made with their fathers, and his testimonies which he testified against them; and they followed vanity, and became vain, and went after the heathen that were around them, concerning whom the LORD had charged them, that they should not do like them.

Proverbs 19:27

Cease, my son, to hear the instruction that causeth to err from the words of knowledge.

Jeremiah 2:5

Thus saith the LORD, What iniquity have your fathers found in me, that they have gone far from me, and have walked after vanity, and have become vain?

Jeremiah 9:20

Yet hear the word of the LORD, O ye women, and let your ear receive the word of his mouth, and teach your daughters wailing, and every one her neighbor lamentation.

Jeremiah 29:8

For thus saith the LORD of hosts, the God of Israel; Let not your prophets and your diviners, that are in the midst of you, deceive you, neither hearken to your dreams which ye cause to be dreamed.

Ezekiel 13:16

To wit, the prophets of Israel who prophesy concerning Jerusalem, and who see visions of peace for her, and there is no peace, saith the Lord GOD.

Ezekiel 13:23

Therefore ye shall see no more vanity, nor divine divinations: for I will deliver my people out of your hand: and ye shall know that I am the LORD.

Ezekiel 22:28

And her prophets have daubed them with untempered mortar, seeing vanity, and divining lies to them, saying, Thus saith the Lord GOD, when the LORD hath not spoken.

Micah 2:11

If a man walking in the spirit and falsehood doth lie, saying, I will prophesy to thee of wine and of strong drink; he shall even be the prophet of this people.

Romans 1:21

Because that when they knew God, they glorified him not as God, neither were thankful, but became vain in their imaginations, and their foolish heart was darkened.

Treasury of Scripture Knowledge

Summary

Thus saith the LORD of hosts, Hearken not unto the words of the prophets that prophesy unto you: they make you vain: they speak a vision of their own heart, and not out of the mouth of the LORD.

Bible References

Hearken

Jeremiah 27:9
Therefore hearken ye not to your prophets, nor to your diviners, nor to your dreamers, nor to your enchanters, nor to your sorcerers, who speak to you, saying, Ye shall not serve the king of Babylon:
Jeremiah 29:8
For thus saith the LORD of hosts, the God of Israel; Let not your prophets and your diviners, that are in the midst of you, deceive you, neither hearken to your dreams which ye cause to be dreamed.
Proverbs 19:27
Cease, my son, to hear the instruction that causeth to err from the words of knowledge.
Matthew 7:15
Beware of false prophets, who come to you in sheep's clothing, but inwardly they are ravening wolves.
2 Corinthians 11:13
For such are false apostles, deceitful workers, transforming themselves into the apostles of Christ.
Galatians 1:8
But though we, or an angel from heaven, should preach any other gospel to you than that which we have preached to you, let him be accursed.
1 John 4:1
Beloved, believe not every spirit, but try the spirits whether they are of God: because many false prophets have gone out into the world.

They make

Jeremiah 2:5
Thus saith the LORD, What iniquity have your fathers found in me, that they have gone far from me, and have walked after vanity, and have become vain?
2 Kings 17:15
And they rejected his statutes, and his covenant that he made with their fathers, and his testimonies which he testified against them; and they followed vanity, and became vain, and went after the heathen that were around them, concerning whom the LORD had charged them, that they should not do like them.
Romans 1:21
Because that when they knew God, they glorified him not as God, neither were thankful, but became vain in their imaginations, and their foolish heart was darkened.

A vision

Jeremiah 23:21
I have not sent these prophets, yet they ran: I have not spoken to them, yet they prophesied.
Jeremiah 14:14
Then the LORD said to me, The prophets prophesy lies in my name: I have not sent them, neither have I commanded them, neither spoken to them: they prophesy to you a false vision and divination, and a thing of naught, and the deceit of their heart.
Ezekiel 13:3
Thus saith the Lord GOD; Woe to the foolish prophets, that follow their own spirit, and have seen nothing!
Ezekiel 22:28
And her prophets have daubed them with untempered mortar, seeing vanity, and divining lies to them, saying, Thus saith the Lord GOD, when the LORD hath not spoken.
Micah 2:11
If a man walking in the spirit and falsehood doth lie, saying, I will prophesy to thee of wine and of strong drink; he shall even be the prophet of this people.