Revelation 9:11-13

MLV(i) 11 They have the messenger of the abyss as king over them. His name in Hebrew is Abbadon but in the Greek language he has the name Apollyon.
12 The first Woe has gone away. Behold, two Woes still are coming after these things.
13 And the sixth messenger sounded and I heard one voice out of the four horns of the golden altar which is in God’s sight,