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 4:1

The Amazing Scene in Heaven

4:1 After these things I looked, and there was a door standing open in heaven! And the first voice I had heard speaking to me like a trumpet said: “Come up here so that I can show you what must happen after these things.”