Deuteronomy 18:20
"But if any prophet presumes to speak anything in my name that I have not authorized him to speak, or speaks in the name of other gods, that prophet must die.
Deuteronomy 13:1-5
Suppose a prophet or one who foretells by dreams should appear among you and show you a sign or wonder,
Zechariah 13:3
Then, if anyone prophesies in spite of this, his father and mother to whom he was born will say to him, 'You cannot live, for you lie in the name of the Lord.' Then his father and mother to whom he was born will run him through with a sword when he prophesies.
1 Kings 18:19
Now send out messengers and assemble all Israel before me at Mount Carmel, as well as the 450 prophets of Baal and 400 prophets of Asherah whom Jezebel supports.
1 Kings 18:27
At noon Elijah mocked them, "Yell louder! After all, he is a god; he may be deep in thought, or perhaps he stepped out for a moment or has taken a trip. Perhaps he is sleeping and needs to be awakened."
1 Kings 18:40
Elijah told them, "Seize the prophets of Baal! Don't let even one of them escape!" So they seized them, and Elijah led them down to the Kishon Valley and executed them there.
Jeremiah 2:8
Your priests did not ask, 'Where is the Lord?' Those responsible for teaching my law did not really know me. Your rulers rebelled against me. Your prophets prophesied in the name of the god Baal. They all worshiped idols that could not help them.
Jeremiah 14:14-15
Then the Lord said to me, "Those prophets are prophesying lies while claiming my authority! I did not send them. I did not commission them. I did not speak to them. They are prophesying to these people false visions, worthless predictions, and the delusions of their own mind.
Jeremiah 23:13-15
The Lord says, "I saw the prophets of Samaria doing something that was disgusting. They prophesied in the name of the god Baal and led my people Israel astray.
Jeremiah 23:31
I, the Lord, affirm that I am opposed to those prophets who are using their own tongues to declare, 'The Lord declares.'
Jeremiah 27:15
For I, the Lord, affirm that I did not send them. They are prophesying lies to you. If you listen to them, I will drive you and the prophets who are prophesying lies out of the land and you will all die in exile."
Jeremiah 28:15-17
Then the prophet Jeremiah told the prophet Hananiah, "Listen, Hananiah! The Lord did not send you! You are making these people trust in a lie!
Ezekiel 13:6
They see delusion and their omens are a lie. They say, "the Lord declares," though the Lord has not sent them; yet they expect their word to be confirmed.
Matthew 7:15
"Watch out for false prophets, who come to you in sheep's clothing but inwardly are voracious wolves.
2 Peter 2:12
But these men, like irrational animals -- creatures of instinct, born to be caught and destroyed -- do not understand whom they are insulting, and consequently in their destruction they will be destroyed,
Revelation 19:20
Now the beast was seized, and along with him the false prophet who had performed the signs on his behalf -- signs by which he deceived those who had received the mark of the beast and those who worshiped his image. Both of them were thrown alive into the lake of fire burning with sulfur.