John Trapp on Ezekiel 1:22

Ver. 22. And the likeneſſe of the firmament] The glory of God in Chriſt is revealed to the Prophet in this enſuing viſion: even that great myſtery of godlineſſe, God manifested in the fleſh, &c. 1 Tim. 3. whereof this was a kind of prelude. To like purpoſe alſo was that viſiion. Iſa. 6.1. with Joh. 12.39, 40, 41.

Ʋpon the heads of the living creature] Between them and the Lord Chriſt, as a skreen, and ſupplyed likely the office or that other pair of wings, Iſa. 6.2. See Exod. 24.10.

Vide Plin. lib. 37. cap. 2. Chryſtallus eſt gelu concretum. Was as the colour of the terrible cryſtal] Heb. of the formidable froſt, that is, of the moſt vehement froſt; a Periphraſis of cryſtal. All things above are dreadfully glorious: as all things below are pellucid, pervious, and clear to Gods eye, like a diaphanous body, Heb. 4.13 Mountains of braſſe are as tranſparent to him as the cleareſt Cryſtal. The firmament is ſo clear, that Chriſt ſeeth through it. Its a molten looking-glaſſe, Job 37.18. and thoſe Atheiſts are utterly out who ask How doth God know? can he judge through the dark clouds? Job 22.13.