'False Prophets' in the Bible

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

And many false prophets will rise, and will deceive many.

For false Christs will arise, and false prophets, and will show great signs and wonders; so that, if it were possible, they would deceive the very elect.

For false Christs, and false prophets will rise, and will show signs and wonders, to seduce, if it were possible, even the elect.

Woe to you, when all men shall speak well of you! for so did their fathers to the false prophets.

But there were false prophets also among the people, even as there will be false teachers among you, who will privately bring in damnable heresies, even denying the Lord that bought them, and bring upon themselves swift destruction.

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