Trumpet: Sounding of, Illustrative of God's Power to Raise the Dead
Source: TTT
1 Corinthians 15:52
in an instant, in the twinkling of an eye, at the last trumpet. For the trumpet will sound, the dead will be raised imperishable, and we will be changed.
1 Thessalonians 4:16
For the Lord Himself will descend from heaven with a loud command, with the voice of an archangel, and with the trumpet of God, and the dead in Christ will be the first to rise.