'False Prophets' in the Bible

Take heed then of false prophets, who come to you in the garb of sheep, but inwardly they are ravening wolves.

And many false prophets shall arise, and shall deceive many.

for false Messiahs and false prophets shall arise, and give out great signs and wonders; so as to deceive, if it were possible, even the elect.

For many false Messiahs and false prophets shall arise, and shall propose signs and wonders to deceive, if it were possible, even the elect.

Wo unto you, when men shall speak well of you! for just so did their fathers of the false prophets.

BUT there were false prophets among the people, as there will be false teachers also among you, who wickedly introduce damnable heresies, and deny the sovereign Lord who bought them, bringing on themselves swift destruction.

BELOVED, believe not every pretender to inspiration, but bring these spirits to the trial whether they are of God; because many false prophets are gone forth into the world.