Revelation 15:2-3

I saw what looked like a sea of glass mixed with fire. All of those who had won the victory over the beast and his idol and over the number of his name were standing by the sea of glass. They had harps that God had given them. They sang the song of Moses, the servant of God, and the song of the Lamb: “You do great and wonderful things, Lord God Almighty. Everything the Lord does is right and true, King of the nations.