Revelation 1:10

1:10 I was in the Spirit on the Lord’s Day when I heard behind me a loud voice like a trumpet,

Revelation 8:8

8:8 Then the second angel blew his trumpet, and something like a great mountain of burning fire was thrown into the sea. A third of the sea became blood,

Revelation 9:13-14

9:13 Then the sixth angel blew his trumpet, and I heard a single voice coming from the horns on the golden altar that is before God, 9:14 saying to the sixth angel, the one holding the trumpet, “Set free the four angels who are bound at the great river Euphrates!”