Matthew 24:21-24

21 For then there will be great tribulation, such as has not been since the beginning of the world until this time, no, nor ever shall be.

22 And unless those days were shortened, no flesh would be saved; but for the elect's sake those days will be shortened.

23 Then if anyone says to you, 'Look, here is the Christ!' or 'There!' do not believe it.

24 For false christs and false prophets will rise and show great signs and wonders to deceive, if possible, even the elect.