1 Thessalonians 4:16/17 For the Lord himself shall descend from heaven
with a shout, with the voice of the archangel, and with the trump of
God: and the dead in Christ shall rise first: then we who are alive
and remain ... Go  UP  >

The context was in the Sinai Wilderness, getting ready to move out in
the morning, there were several trumps. The last trump was to "move
out, start walking"
   In the same way at the "final trump of God," we leave in the rapture.
Now, of course, Gabriel Could blow GOD's Trumpet on Rosh Hashanah, we
just don't know!

 Maranatha,   Lewis