Rev 4:6 | ISV | STEP | In front of the throne was something like a sea of glass as clear as crystal. In the center of the throne and on each side of the throne were four living creatures full of eyes in front and in back.

Revelation of John 4:6

6 In front of the throne was something like a sea of glass as clear as crystal. In the center of the throne and on each side of the throne were four living creatures full of eyes in front and in back.Exod 38:8; Ezek 1:5; Rev 1:8; 15:2