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 2:26-27
These things I have written to you, concerning them who deceive you;
Revelation 12:9
And thus the great dragon was cast out; even the old serpent called the Devil, and Satan, who deceives the world, was cast out to the earth; and his angels were cast out with him.
Revelation 13:14
and it deceives the inhabitants of the earth by signs which it is given it to do before the beast; commanding the inhabitants of the earth to make an image of the beast that had the wound of the sword, and lived.
Revelation 20:3
and he cast him into the abyss, and shut him down, and set a seal upon him, that he might not deceive the nations any more, till the thousand years were accomplished; and then he must be loosed again for a little time.