Ezekiel 1:21-23

New Catholic Bible

²¹ When the creatures moved, the wheels also moved. When the creatures stood still, the wheels also stood still. When the creatures left the ground, the wheels also left the ground, for the Spirit of the living creatures was in the wheels.

²² Over the heads of the living creatures, there was what appeared to be a firmament, glittering like crystal and spread out over their heads. ²³ Beneath the firmament, their wings were stretched out straight, one toward another, and each of the creatures had two wings covering its body.