I want to tell you something very interesting about that word "shout." This is the only place in the New Testament where the Greek word here translated "shout" occurs, and it does not mean a shout of terror, a startling shout; it is a word of encouragement. It is the word that was used in olden times to encourage the rowers... It is the shout of encouragement for the people of God, the word that calls them, in a moment, in the twinkling of an eye.
The One who loves us, who has done so much for us, will be there on the threshold of the glory and will take us in... What a scene that will be!