Revelation 14:2

And I heard a sound from heaven like the roar of great waters and the rumbling of loud thunders. The sound that I heard was like that of harpists playing on their harps.

Revelation 1:15

His feet were like bronze refined to white heat in a furnace, and His voice was like the roar of many waters.

Revelation 5:8

When He took it, the four living creatures and the twenty-four elders fell down before the Lamb, each with a harp, and golden bowls that were full of incense, which represent the prayers of God's people.

Revelation 11:15

Then the seventh angel blew his trumpet, and loud voices were heard in heaven, saying, "The sovereignty of the world has come into the possession of our Lord and His Christ, and He will reign forever and ever."

Revelation 15:2

Then I saw something that looked like a sea of glass mixed with fire, and standing upon the sea of glass were those who had conquered the wild beast, his statue, and the number representing his name; and they had harps that God had given them.

Revelation 1:10

On the Lord's day I was in the Spirit's power, and I heard a voice like a trumpet behind me say:

Revelation 6:1

And when the Lamb broke the first of the seven seals, I looked and heard one of the four living creatures say with a voice like thunder, "Come!"

Revelation 8:7-1

The first one blew his trumpet, and there was a shower of hail and fire mixed with blood as it hurled itself upon the earth, and one-third of the earth was burned up, and all the green grass was burned up.

Revelation 10:3-4

and in a loud voice he shouted like the roaring of a lion; and when he had shouted, the seven thunders rumbled.

Revelation 11:12

And they heard a loud voice from heaven say to them, "Come up here." And they went up to heaven in a cloud, and their enemies looked on as spectators.

Revelation 18:22

The sound of harpists, musicians, flute-players, and trumpeters will never be heard in you again. No craftsmen of any kind will ever be found in you again, and the sound of the grinding mill will never be heard in you again;

Revelation 19:1-7

After this I heard something like the loud shout of a great multitude in heaven, saying: "Praise the Lord! Salvation, glory, and power belong to our God,

Treasury of Scripture Knowledge

Summary

And I heard a voice from heaven, as the voice of many waters, and as the voice of a great thunder: and I heard the voice of harpers harping with their harps:

Bible References

A voice

Revelation 10:4
When the seven thunders had rumbled, I was going to write it down, but I heard a voice from heaven say: "Seal up what the seven thunders have said, and do not write it down!"
Revelation 11:12
And they heard a loud voice from heaven say to them, "Come up here." And they went up to heaven in a cloud, and their enemies looked on as spectators.
Revelation 19:1
After this I heard something like the loud shout of a great multitude in heaven, saying: "Praise the Lord! Salvation, glory, and power belong to our God,

Of many

Revelation 1:15
His feet were like bronze refined to white heat in a furnace, and His voice was like the roar of many waters.
Revelation 19:6
Then I heard something like the shout of a great multitude and the roar of many waters and the peal of mighty thunders, saying: "Praise the Lord! For the Lord, our Almighty God, has now begun to reign!

Of a

Revelation 1:10
On the Lord's day I was in the Spirit's power, and I heard a voice like a trumpet behind me say:
Revelation 8:7
The first one blew his trumpet, and there was a shower of hail and fire mixed with blood as it hurled itself upon the earth, and one-third of the earth was burned up, and all the green grass was burned up.
Revelation 9:1
Then the fifth angel blew his trumpet, and I saw a star that had fallen from the sky upon the earth. To this angel the key to the pit of the abyss was given,
Revelation 10:3
and in a loud voice he shouted like the roaring of a lion; and when he had shouted, the seven thunders rumbled.
Revelation 11:15
Then the seventh angel blew his trumpet, and loud voices were heard in heaven, saying, "The sovereignty of the world has come into the possession of our Lord and His Christ, and He will reign forever and ever."

Harpers

Revelation 5:8
When He took it, the four living creatures and the twenty-four elders fell down before the Lamb, each with a harp, and golden bowls that were full of incense, which represent the prayers of God's people.
Revelation 15:2
Then I saw something that looked like a sea of glass mixed with fire, and standing upon the sea of glass were those who had conquered the wild beast, his statue, and the number representing his name; and they had harps that God had given them.
Revelation 18:22
The sound of harpists, musicians, flute-players, and trumpeters will never be heard in you again. No craftsmen of any kind will ever be found in you again, and the sound of the grinding mill will never be heard in you again;