Revelation 15:2
King James Version
“And I saw as it were a sea of glass mingled with fire: and them that had gotten the victory over the beast, and over his image, and over his mark, over the number of his name, stand on the sea of glass, having the harps of God.”
Context
1And I saw another sign in heaven, great and marvellous, seven angels having the seven last plagues; for in them is filled up the wrath of God.
2And I saw as it were a sea of glass mingled with fire: and them that had gotten the victory over the beast, and over his image, and over his mark, over the number of his name, stand on the sea of glass, having the harps of God.
3And they sing the song of Moses the servant of God, and the song of the Lamb, saying, Great and marvellous thy works, Lord God Almighty; just and true thy ways, thou King of saints.
4Who shall not fear thee, O Lord, and glorify thy name? for only holy: for all nations shall come and worship before thee; for thy judgments are made manifest.
5And after that I looked, and, behold, the temple of the tabernacle of the testimony in heaven was opened: