Matthew 24:23KJV

21For then shall be great tribulation, such as was not since the beginning of the world to this time, no, nor ever shall be.

22And except those days should be shortened, there should no flesh be saved: but for the elect's sake those days shall be shortened.

23Then if any man shall say unto you, Lo, here Christ, or there; believe not.

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

25Behold, I have told you before.