Ezekiel 1:13-16

MSB(i) 13 In the midst of the living creatures was the appearance of glowing coals of fire, or of torches. Fire moved back and forth between the living creatures; it was bright, and lightning flashed out of it. 14 The creatures were darting back and forth as quickly as flashes of lightning. 15 When I looked at the living creatures, I saw a wheel on the ground beside each creature with its four faces. 16 The workmanship of the wheels looked like the gleam of beryl, and all four had the same likeness. Their workmanship looked like a wheel within a wheel.