Ezekiel 1:21-23

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 after them: for the spirit of the living creatures [was] in the wheels.

22 And over the heads of each living creature there appeared a heaven like a marvellous crystal, stretched forth over their heads above.

23 And under the heaven their wings [were] straight one toward the other: each one had two, and another two which covered their bodies.