Mark 13:24-37 : King James Version
24But in those days, after that tribulation, the sun shall be darkened, and the moon shall not give her light, 25And the stars of heaven shall fall, and the powers that are in heaven shall be shaken. 26And then shall they see the Son of man coming in the clouds with great power and glory. 27And then shall he send his angels, and shall gather together his elect from the four winds, from the uttermost part of the earth to the uttermost part of heaven. 28Now learn a parable of the fig tree; When her branch is yet tender, and putteth forth leaves, ye know that summer is near: 29So ye in like manner, when ye shall see these things come to pass, know that it is nigh, even at the doors. 30Verily I say unto you, that this generation shall not pass, till all these things be done. 31Heaven and earth shall pass away: but my words shall not pass away.
32But
of that day and that hour knoweth no man, no, not the angels which
are in heaven, neither the Son, but the Father. 33Take ye
heed, watch and pray: for ye know not when the time is. 34For
the Son of Man is as a man taking a far journey, who left his house,
and gave authority to his servants, and to every man his work, and
commanded the porter to watch. 35Watch ye therefore: for
ye know not when the master of the house cometh, at even, or at
midnight, or at the cockcrowing, or in the morning: 36Lest
coming suddenly he find you sleeping. 37And what I say
unto you I say unto all, Watch.