Ezekiel 1:21-23 Amplified Bible, Classic Edition (AMPC)
21 When those went, these went; and when those stood, these stood; and when those were lifted up from the earth, the wheels were lifted up high beside them, for the spirit or life of the [combined] living creature was in the wheels.
22 Over the head of the [combined] living creature there was the likeness of a firmament, looking like the terrible and awesome [dazzling of shining] crystal or ice stretched across the expanse of sky over their heads.
23 And under the firmament their wings were stretched out straight, one toward another. Every living creature had two wings which covered its body on this side and two which covered it on that side.
Ezekiel 1:21-23 New International Version (NIV)
21 When the creatures moved, they also moved; when the creatures stood still, they also stood still; and when the creatures rose from the ground, the wheels rose along with them, because the spirit of the living creatures was in the wheels.
22 Spread out above the heads of the living creatures was what looked something like a vault, sparkling like crystal, and awesome. 23 Under the vault their wings were stretched out one toward the other, and each had two wings covering its body.