1 Thessalonians 4:14

4:14 For if we believe that Jesus died and rose again, so also we believe that God will bring with him those who have fallen asleep as Christians.

1 Thessalonians 4:16

4:16 For the Lord himself will come down from heaven with a shout of command, with the voice of the archangel, and with the trumpet of God, and the dead in Christ will rise first.