Matthew 7:15; Matthew 24:11; Matthew 24:24

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

11 And many false prophets shall rise, and shall deceive many.

24 For there shall arise false Christs, and false prophets, and shall shew great signs and wonders; insomuch that, if it were possible, they shall deceive the very elect.