Ezekiel 1:10-14 NKJV
As for the likeness of their faces, each had the face of a man; each of the four had the face of a lion on the right side, each of the four had the face of an ox on the left side, and each of the four had the face of an eagle. Thus were their faces. Their wings stretched upward; two wings of each one touched one another, and two covered their bodies. And each one went straight forward; they went wherever the spirit wanted to go, and they did not turn when they went. As for the likeness of the living creatures, their appearance was like burning coals of fire, like the appearance of torches going back and forth among the living creatures. The fire was bright, and out of the fire went lightning. And the living creatures ran back and forth, in appearance like a flash of lightning.