2 Bible Verses about Sea Of Glass

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 the glassy sea, holding harps from God.

And before the throne [was something] like a sea of glass, like crystal, and in the midst of the throne and around the throne [were] four living creatures full of eyes in front and in back.