The trumpet of God is used throughout Scripture as an assembly call. A trumpet was used in the Roman army to signal the beginning of a march. In the wilderness Moses used it to summon the people of Israel to begin their journey. It is a sound directed toward the living. The trumpet will sound the beginning of that great gathering in the church.
Scripture refers to only one archangel.
His name is Michael. He appears a number of times in the Bible and always in connection with the people of Israel. One of the places where he is mentioned is in the twelfth chapter of Daniel, the same prophet to which Jesus referred concerning the desolating sacrilege. It is strongly suggested here that Michael, the great archangel, is responsible for opening the eyes of certain Jews living in Judea at the time of the departure of the church, and that they will then recognize the Lord Jesus as their true Messiah and become believers in him. And I heard the number of the sealed, a hundred and forty-four thousand sealed, out of every tribe of the sons of Israel.