Ezekiel 1: 2 - 5, 24 - 28
2 On the fifth day of the month (it was the fifth year of the exile of King Jehoi'achin),
3 the word of the LORD came to Ezekiel the priest, the son of Buzi, in the land of the Chalde'ans by the river Chebar; and the hand of the LORD was upon him there.
4 As I looked, behold, a stormy wind came out of the north, and a great cloud, with brightness round about it, and fire flashing forth continually, and in the midst of the fire, as it were gleaming bronze.
5 And from the midst of it came the likeness of four living creatures. And this was their appearance: they had the form of men,
24 And when they went, I heard the sound of their wings like the sound of many waters, like the thunder of the Almighty, a sound of tumult like the sound of a host; when they stood still, they let down their wings.
25 And there came a voice from above the firmament over their heads; when they stood still, they let down their wings.
26 And above the firmament over their heads there was the likeness of a throne, in appearance like sapphire; and seated above the likeness of a throne was a likeness as it were of a human form.
27 And upward from what had the appearance of his loins I saw as it were gleaming bronze, like the appearance of fire enclosed round about; and downward from what had the appearance of his loins I saw as it were the appearance of fire, and there was brightness round about him.
28 Like the appearance of the bow that is in the cloud on the day of rain, so was the appearance of the brightness round about. Such was the appearance of the likeness of the glory of the LORD. And when I saw it, I fell upon my face, and I heard the voice of one speaking.

EWTN