Revelation 4:6; Revelation 5:11; Revelation 7:11

Revelation 4:6

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.

Revelation 5:11

11 Then I looked and heard the voice of many angels, numbering thousands upon thousands, and ten thousand times ten thousand. They encircled the throne and the living creatures and the elders.

Revelation 7:11

11 All the angels were standing around the throne and around the elders and the four living creatures. They fell down on their faces before the throne and worshiped God,