Revelation of John 8:2

2Then I saw the seven angels awho stand before God, and seven trumpets were given to them.

Revelation of John 8:13

13Then I looked, and I heard an eagle crying with a loud voice as it flew directly overhead, bWoe, woe, woe to those who dwell on the earth, at the blasts of the other trumpets that the three angels are about to blow!”

Revelation of John 9:13-14

13Then the sixth angel blew his trumpet, and I heard a voice from cthe four horns of the golden altar before God, 14saying to the sixth angel who had the trumpet, “Release dthe four angels who are bound at ethe great river Euphrates.”
Copyright information for ESV