William Barclay's Daily Study Bible - Revelation 9:13-21
9:13-21 The sixth angel sounded a blast on his trumpet and I heard a voice from the four horns of the altar saying to the sixth angel who had the trumpet: "Release the four angels who are bound at the great river Euphrates." So there came the four angels who were prepared for that hour and day and month and year, to kill a third part of the human race. The number of the armed forces of cavalry was twenty thousand times ten thousand. I heard their number, and this was how I saw in appearance... read more
Matthew Henry's Complete Commentary - Revelation 9:13-21
Here let us consider the preface to this vision, and then the vision itself. I. The preface to this vision: A voice was heard from the horns of the golden altar, Rev. 9:13, 14. Here observe, 1. The power of the church's enemies is restrained till God gives the word to have them turned loose. 2. When nations are ripe for punishment, those instruments of God's anger that were before restrained are let loose upon them, Rev. 9:14. 3. The instruments that God makes use of to punish a people may... read more