Revelation 5:11

5:11 Then I looked and heard the voice of many angels in a circle around the throne, as well as the living creatures and the elders. Their number was ten thousand times ten thousand – thousands times thousands –

Revelation 6:6

6:6 Then I heard something like a voice from among the four living creatures saying, “A quart of wheat will cost a day’s pay and three quarts of barley will cost a day’s pay. But do not damage the olive oil and the wine!”

Revelation 10:4

10:4 When the seven thunders spoke, I was preparing to write, but just then I heard a voice from heaven say, “Seal up what the seven thunders spoke and do not write it down.”

Revelation 18:4

18:4 Then I heard another voice from heaven saying, “Come out of her, my people, so you will not take part in her sins and so you will not receive her plagues,