Revelation 15:1-3

Darby Translation

15 And I saw another sign in the heaven, great and wonderful: seven angels having seven plagues, the last; for in them the fury of God is completed.

² And I saw as a glass sea, mingled with fire, and those that had gained the victory over the beast, and over its image, and over the number of its name, standing upon the glass sea, having harps of God.

³ And they sing the song of Moses bondman of God, and the song of the Lamb, saying, Great and wonderful [are] thy works, Lord God Almighty; righteous and true [are] thy ways, O King of nations.