1 Corinthians 15:52

“And He will send forth His angels with a great trumpet and they will gather together His elect from the four winds, from one end of the sky to the other.

“Do not marvel at this; for an hour is coming, in which all who are in the tombs will hear His voice,

But each in his own order: Christ the first fruits, after that those who are Christ’s at His coming.

who will transform the body of our humble state into conformity with the body of His glory, by His working through which He is able to even subject all things to Himself.

For this we say to you by the word of the Lord, that we who are alive and remain until the coming of the Lord, will not precede those who have fallen asleep.

Then we who are alive and remain will be caught up together with them in the clouds to meet the Lord in the air, and so we shall always be with the Lord.

Then I saw the seven angels who stand before God, and seven trumpets were given to them.