Revelation 9:14

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 9:14  (King James Version)
Saying to the sixth angel which had the trumpet, Loose the four angels which are bound in the great river Euphrates.