Revelation 10:3

10:3 Then he shouted in a loud voice like a lion roaring, and when he shouted, the seven thunders sounded their voices.

Revelation 19:1

19:1 After these things I heard what sounded like the loud voice of a vast throng in heaven, saying,

“Hallelujah! Salvation and glory and power belong to our God,

Revelation 19:6

The Wedding Celebration of the Lamb

19:6 Then I heard what sounded like the voice of a vast throng, like the roar of many waters and like loud crashes of thunder. They were shouting:

“Hallelujah!

For the Lord our God, the All-Powerful, reigns!