Jeremiah 23:16

Thus says the LORD of hosts, 'Do not listen to the words of the prophets who prophesy to you: they teach you vanity; they speak a vision of their own heart, and not out of the mouth of the LORD.

Jeremiah 14:14

Then the LORD said to me, "The prophets prophesy lies in my name; I did not send them, neither have I commanded them, neither spoke I to them: they prophesy to you a lying vision, and divination, and a thing of nothing, and the deceit of their own heart.

Jeremiah 27:9-10

But as for you, do not listen to your prophets, nor to your diviners, nor to your dreams, nor to your soothsayers, nor to your sorcerers, who speak to you, saying, 'You shall not serve the king of Babylon':

Matthew 7:15

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

Jeremiah 23:21

I sent not these prophets, yet they ran: I did not speak to them, yet they prophesied.

Jeremiah 23:26

How long shall this be in the heart of the prophets who prophesy lies, even the prophets of the deceit of their own heart,

Jeremiah 27:14-17

Do not listen to the words of the prophets who speak to you, saying, 'You shall not serve the king of Babylon'; for they prophesy a lie to you.

Ezekiel 13:3

Thus says the Lord GOD, "Woe to the foolish prophets, who follow their own spirit, and have seen nothing.

Ezekiel 13:6

They have seen falsehood and lying divination, who say, "The LORD says"; but the LORD has not sent them: and they have made men to hope that the word would be confirmed.

2 Corinthians 11:13-15

For such men are false apostles, deceitful workers, masquerading as Christ's apostles.

Galatians 1:8-9

But even though we, or an angel from heaven, should proclaim to you a "good news" other than that which we preached to you, let him be cursed.

1 John 4:1

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

2 Kings 17:15

They rejected his statutes, and his covenant that he made with their fathers, and his testimonies which he testified to them; and they followed vanity, and became vain, and followed the nations that were around them, concerning whom the LORD had commanded them that they should not do like them.

Proverbs 19:27

If you stop listening to instruction, my son, you will stray from the words of knowledge.

Jeremiah 2:5

Thus says the LORD, "What unrighteousness have your fathers found in me, that they have gone far from me, and have walked after vanity, and are become vain?

Jeremiah 9:20

"Yet hear the word of the LORD, you women, and let your ear receive the word of his mouth; and teach your daughters wailing, and everyone her neighbor lamentation.

Jeremiah 29:8

For thus says the LORD of hosts, the God of Israel: 'Do not let your prophets who are in the midst of you, and your diviners, deceive you; neither listen to your dreams which you 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,'"' says the Lord GOD."

Ezekiel 13:23

Therefore you shall no more see false visions, nor practice divination. I will deliver my people out of your hand; and you shall know that I am the LORD."'"

Ezekiel 22:28

Her prophets have plastered for them with whitewash, seeing false visions, and divining lies to them, saying, 'Thus says the Lord GOD,' when the LORD has not spoken.

Micah 2:11

If a man walking in a spirit of falsehood lies: "I will prophesy to you of wine and of strong drink;" he would be the prophet of this people.

Romans 1:21

Because, although they knew God, they did not glorify him as God or give him thanks, but their thinking became nonsense, 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
But as for you, do not listen to your prophets, nor to your diviners, nor to your dreams, nor to your soothsayers, nor to your sorcerers, who speak to you, saying, 'You shall not serve the king of Babylon':
Jeremiah 29:8
For thus says the LORD of hosts, the God of Israel: 'Do not let your prophets who are in the midst of you, and your diviners, deceive you; neither listen to your dreams which you cause to be dreamed.
Proverbs 19:27
If you stop listening to instruction, my son, you will stray from the words of knowledge.
Matthew 7:15
"Beware of false prophets, who come to you in sheep's clothing, but inwardly are ravening wolves.
2 Corinthians 11:13
For such men are false apostles, deceitful workers, masquerading as Christ's apostles.
Galatians 1:8
But even though we, or an angel from heaven, should proclaim to you a "good news" other than that which we preached to you, let him be cursed.
1 John 4:1
Beloved, do not believe every spirit, but test the spirits, whether they are of God, because many false prophets have gone out into the world.

They make

Jeremiah 2:5
Thus says the LORD, "What unrighteousness have your fathers found in me, that they have gone far from me, and have walked after vanity, and are become vain?
2 Kings 17:15
They rejected his statutes, and his covenant that he made with their fathers, and his testimonies which he testified to them; and they followed vanity, and became vain, and followed the nations that were around them, concerning whom the LORD had commanded them that they should not do like them.
Romans 1:21
Because, although they knew God, they did not glorify him as God or give him thanks, but their thinking became nonsense, and their foolish heart was darkened.

A vision

Jeremiah 23:21
I sent not these prophets, yet they ran: I did not speak to them, yet they prophesied.
Jeremiah 14:14
Then the LORD said to me, "The prophets prophesy lies in my name; I did not send them, neither have I commanded them, neither spoke I to them: they prophesy to you a lying vision, and divination, and a thing of nothing, and the deceit of their own heart.
Ezekiel 13:3
Thus says the Lord GOD, "Woe to the foolish prophets, who follow their own spirit, and have seen nothing.
Ezekiel 22:28
Her prophets have plastered for them with whitewash, seeing false visions, and divining lies to them, saying, 'Thus says the Lord GOD,' when the LORD has not spoken.
Micah 2:11
If a man walking in a spirit of falsehood lies: "I will prophesy to you of wine and of strong drink;" he would be the prophet of this people.