2 Bible Verses about Sea Of Glass

And I saw what seemed to be a sea of glass mingled with fire, and those who had gained the victory over the Wild Beast and over his statue and the number of his name, standing by the sea of glass and having harps which belonged to God.

And in front of the throne there seemed to be a sea of glass, resembling crystal. And midway between the throne and the Elders, and surrounding the throne, were four living creatures, full of eyes in front and behind.