Revelation 5:8

When he took the book, the four Living Creatures and the four and twenty Elders fell down before the Lamb. And each had a harp and a golden bowls full of incense, which are the prayers of the saints.

Revelation 14:2

And I heard a voice from heaven like the voice of many waters, and the voice of a great thunder; and I heard the voice of harpers harping 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
When he took the book, the four Living Creatures and the four and twenty Elders fell down before the Lamb. And each had a harp and a golden bowls full of incense, which are the prayers of the saints.
Revelation 14:2
And I heard a voice from heaven like the voice of many waters, and the voice of a great thunder; and I heard the voice of harpers harping on their harps.