Revelation 9:13-15

13After these things, the sixth Angel sounded, and I heard one voice from the four horns of the altar of gold, which is before God,14Which said to the sixth Angel that had a trumpet: "Loose the four Angels imprisoned at the great river Euphrates." 15And those four Angels were released who were prepared for an hour and for a day and for a month and for a year, to kill a third of the children of men.
                           PHILLY 4 aka "Sea~Biscuit"