6 Also in front of the throne there was what looked like a sea of glass, clear as crystal. In the center, around the throne, were four living creatures, and they were covered with eyes, in front and in back.

Read Revelation 4:6 Using Other Translations

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.
and before the throne there was as it were a sea of glass, like crystal. And around the throne, on each side of the throne, are four living creatures, full of eyes in front and behind:
In front of the throne was a shiny sea of glass, sparkling like crystal. In the center and around the throne were four living beings, each covered with eyes, front and back.