King James Version
And before the throne there was a sea of glass like unto crystal: and in the midst of the throne, and round about the throne, were four beasts full of eyes before and behind.New International Version
Also before the throne there was what looked like a sea of glass, clear as crystal.Catholic Public Domain Version
And in view of the throne, there was something that seemed like a sea of glass, similar to crystal. And in the middle of the throne, and all around the throne, there were four living creatures, full of eyes in front and in back