Revelation 5:8

And when he had taken the book, the four living creatures, and the twenty-four elders fell down before the Lamb, having, each of them, harps, and golden cups full of incense, which is the prayers of the saints.

Revelation 14:2

And I heard a voice from heaven like the voice of many waters, and like the voice of loud thunder; and I heard the voice of harpers harping with 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 living creatures, and the twenty-four elders fell down before the Lamb, having, each of them, harps, and golden cups full of incense, which is the prayers of the saints.
Revelation 14:2
And I heard a voice from heaven like the voice of many waters, and like the voice of loud thunder; and I heard the voice of harpers harping with their harps.