"For [in] those days shall be affliction, such as was not from the beginning of the creation which God created unto this time, neither shall be.
And except that the Lord had shortened those days, no flesh should be saved: but for the elect's sake, whom he hath chosen, he hath shortened the days.
And then if any man shall say to you, Lo, here [is] Christ; or, lo, [he is] there; believe [him] not:
For false Christs and false prophets shall rise, and shall shew signs and wonders, to seduce, if [it were] possible, even the elect.
But take ye heed: behold, I have foretold you all things.
But in those days, after that tribulation, the sun shall be darkened, and the moon shall not give her light,
And the stars of heaven shall fall, and the powers that are in heaven shall be shaken.
And then shall they see the Son of man coming in the clouds with great power and glory." - Mark 13:19-26 (KJV)