Matthew 24:29-31

29“Immediately after the misery of those days, the sun will turn dark, the moon will not give light, the stars will fall from the sky, and the powers of the universe will be shaken.

30“Then the sign of the Son of Man will appear in the sky. All the people on earth will cry in agony when they see the Son of Man coming on the clouds in the sky with power and great glory.

31He will send out his angels with a loud trumpet call, and from every direction under the sky, they will gather those whom God has chosen.