1And the fifth angel blew his trumpet, and I saw a star fallen from heaven to earth, and he was given the key to the shaft of the bottomless pit.
Each of the seven angels (see Revelation 8:2, Revelation 8:6) blew his trumpet in response to the prayers of the saints (Revelation 8:3–4). See the commentary on Revelation 8:3–4 for why the prayers of the saints trigger these trumpet blasts.
1 And the fifth angel blew his trumpet, and I saw a star fallen from heaven to earth, and he was given the key to the shaft of the bottomless pit.