Revelation 19:6 New American Standard Bible (NASB)
6 Then I heard something like the voice of a great multitude and like the sound of many waters and like the sound of mighty peals of thunder, saying,
“Hallelujah! For the Lord our God, the Almighty, reigns.
Revelation 19:6 New International Version (NIV)
6 Then I heard what sounded like a great multitude, like the roar of rushing waters and like loud peals of thunder, shouting: