Bible Verses About The Sea: (Smooth as glass,) of the peace of heaven

And in the sight of the throne was, as it were, a sea of glass like to crystal: and in the midst of the throne, and round about the throne, were four living creatures, full of eyes before and behind.

And I saw as it were a sea of glass mingled with fire: and them that had overcome the beast and his image and the number of his name, standing on the sea of glass, having the harps of God: