Mt 24:29-31
"Immediately after the tribulation of those days, the sun will be darkened, and the moon will not give its light, and the stars will fall from the sky, and the powers of the heavens will be shaken. And then the sign of the Son of Man will appear in heaven, and all the tribes of the earth will mourn, and they will see the Son of Man coming upon the clouds of heaven with power and great glory. And he will send out his angels with a trumpet blast, and they will gather his elect from the four winds, from one end of the heavens to the other.
