Revelation 15:3-4

And they sung the sacred ode of Moses the servant of the Lord, and the song of the Lamb, saying, Great and marvellous are thy works, O Lord God Almighty; righteous and true are thy ways, O King of saints.

Revelation 19:1-6

AND after these things I heard a loud sound as of a vast multitude in heaven, saying, Hallelujah: Salvation, and glory, and honour, and power be to the Lord 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 sung the sacred ode of Moses the servant of the Lord, and the song of the Lamb, saying, Great and marvellous are thy works, O Lord God Almighty; righteous and true are thy ways, O King of saints.
Revelation 19:1
AND after these things I heard a loud sound as of a vast multitude in heaven, saying, Hallelujah: Salvation, and glory, and honour, and power be to the Lord our God: