2 Peter 2:1-3

But there were also false prophets among the people, even as there will be false teachers among you; who will privately introduce destructive sects, denying even the Lord who bought them, bringing on themselves swift destruction.

2 Peter 2:15-19

having forsaken the right path, they have wandered, following in the way of Balaam, the son of Bosor, who loved the wages of iniquity,

1 John 4:1-2

Beloved, do not believe every spirit, but try the spirits, whether they be from God; because many false prophets are gone forth into the world.

Revelation 16:13-14

And I saw, and out of the mouth of the dragon, and out of the mouth of the beast, and out of the mouth of the false prophet there came forth three unclean spirits, like frogs:

Revelation 18:2

And he cried with a mighty and a loud voice, saying, It is fallen! it is fallen! it is fallen! even Babylon the Great: and it is become the habitation of demons, and the hold of every unclean spirit, and a cage of every unclean and hateful bird:

Revelation 19:20

And the beast was taken captive, and with him the false prophet, who had wrought signs before him, by which he deceived those who received the mark of the beast, and those who worshiped his image; both of whom were cast alive into the lake of fire which burned with brimstone.

Revelation 20:1-3

And I saw an angel descending from heaven, who had the key of the abyss, and a great chain in his hand.

Treasury of Scripture Knowledge

Summary

And it shall come to pass in that day, saith the LORD of hosts, that I will cut off the names of the idols out of the land, and they shall no more be remembered: and also I will cause the prophets and the unclean spirit to pass out of the land.

Bible References

Cause

2 Peter 2:1
But there were also false prophets among the people, even as there will be false teachers among you; who will privately introduce destructive sects, denying even the Lord who bought them, bringing on themselves swift destruction.
1 John 4:1
Beloved, do not believe every spirit, but try the spirits, whether they be from God; because many false prophets are gone forth into the world.
Revelation 19:20
And the beast was taken captive, and with him the false prophet, who had wrought signs before him, by which he deceived those who received the mark of the beast, and those who worshiped his image; both of whom were cast alive into the lake of fire which burned with brimstone.

Unclean

Revelation 16:13
And I saw, and out of the mouth of the dragon, and out of the mouth of the beast, and out of the mouth of the false prophet there came forth three unclean spirits, like frogs:
Revelation 18:2
And he cried with a mighty and a loud voice, saying, It is fallen! it is fallen! it is fallen! even Babylon the Great: and it is become the habitation of demons, and the hold of every unclean spirit, and a cage of every unclean and hateful bird:
Revelation 20:1
And I saw an angel descending from heaven, who had the key of the abyss, and a great chain in his hand.