Revelation 15:3-4

And they sing the song of Moses, the servant of God, and the song of the Lamb, saying, Great and wonderful are thy works, Lord God Almighty; just and true are thy ways, O King of the nations?

Revelation 19:1-6

After this I heard a loud voice of a great multitude in heaven, saying, Hallelujah: The salvation, and the glory, and the power to our God.

Treasury of Scripture Knowledge

Summary

Thus will I magnify myself, and sanctify myself; and I will be known in the eyes of many nations, and they shall know that I am the LORD.

Bible References

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Revelation 15:3
And they sing the song of Moses, the servant of God, and the song of the Lamb, saying, Great and wonderful are thy works, Lord God Almighty; just and true are thy ways, O King of the nations?
Revelation 19:1
After this I heard a loud voice of a great multitude in heaven, saying, Hallelujah: The salvation, and the glory, and the power to our God.