Revelation 9:13

Overview - Revelation 9
1	At the sounding of the fifth angel, a star falls from heaven, to whom is given the key to the bottomless pit.
2	He opens the pit, and there come forth locusts like scorpions.
12	The first woe past.
13	The sixth trumpet sounds.
14	Four angels are let loose, that were bound.

Revelation 9:13  (King James Version)
And the sixth angel sounded, and I heard a voice from the four horns of the golden altar which is before God,