Mark 13:24-27

24 "But in those days, after that suffering, the sun will be darkened, and the moon will not give its light,
25 and the stars will be falling from heaven, and the powers in the heavens will be shaken.
26 Then they will see "the Son of Man coming in clouds' with great power and glory.
27 Then he will send out the angels, and gather his elect from the four winds, from the ends of the earth to the ends of heaven.

Mark 13:24-27 In-Context

22 False messiahs and false prophets will appear and produce signs and omens, to lead astray, if possible, the elect.
23 But be alert; I have already told you everything.
24 "But in those days, after that suffering, the sun will be darkened, and the moon will not give its light,
25 and the stars will be falling from heaven, and the powers in the heavens will be shaken.
26 Then they will see "the Son of Man coming in clouds' with great power and glory.
27 Then he will send out the angels, and gather his elect from the four winds, from the ends of the earth to the ends of heaven.
28 "From the fig tree learn its lesson: as soon as its branch becomes tender and puts forth its leaves, you know that summer is near.
29 So also, when you see these things taking place, you know that he is near, at the very gates.
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.