Revelation 5:8

And, when he had taken the book, the four Creatures and the twenty-four Councillors prostrated themselves before the Lamb, each of them holding a harp and golden bowls full of incense. (These are the prayers of Christ's People.)

Revelation 14:2

And I heard a sound from Heaven, 'like the sound of many waters,' and like the sound of a loud peal of thunder; the sound that I heard was like the music of harpers playing on their harps.

Treasury of Scripture Knowledge

Summary

Praise the LORD with harp: sing unto him with the psaltery and an instrument of ten strings.

Bible References

Praise

Revelation 5:8
And, when he had taken the book, the four Creatures and the twenty-four Councillors prostrated themselves before the Lamb, each of them holding a harp and golden bowls full of incense. (These are the prayers of Christ's People.)
Revelation 14:2
And I heard a sound from Heaven, 'like the sound of many waters,' and like the sound of a loud peal of thunder; the sound that I heard was like the music of harpers playing on their harps.