Revelation 9:13
The sixth angel sounded. I heard a voice from the horns of the golden altar which is before God,
World English Bible (Public Domain)
In context
Before · Revelation 9:11–12
11They have over them as king the angel of the abyss. His name in Hebrew is “Abaddon”, but in Greek, he has the name “Apollyon”. 12The first woe is past. Behold, there are still two woes coming after this.
13The sixth angel sounded. I heard a voice from the horns of the golden altar which is before God,