Revelation

And I saw another great and marvelous sign in heaven: seven angels having seven plagues [that are] the last [ones], because with them the wrath of God is completed.

And I saw [something] like a sea of glass mixed with fire, and those who had conquered the beast and his image and the number of his name were standing by[note: Or "on"; or "at"; or "near"] the glassy sea, holding harps from God.