Revelation 15:3-4

And they were singing the song of Moses, God's servant, and the song of the Lamb. Their words were, "Great and wonderful are Thy works, O Lord God, the Ruler of all. Righteous and true are Thy ways, O King of the nations.

Revelation 19:1-6

After this I seemed to hear the far-echoing voices of a great multitude in Heaven, who said, "Hallelujah! The salvation and the glory and the power belong 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

And i

Revelation 15:3
And they were singing the song of Moses, God's servant, and the song of the Lamb. Their words were, "Great and wonderful are Thy works, O Lord God, the Ruler of all. Righteous and true are Thy ways, O King of the nations.
Revelation 19:1
After this I seemed to hear the far-echoing voices of a great multitude in Heaven, who said, "Hallelujah! The salvation and the glory and the power belong to our God.