In the year that King Uzziah died I saw the Lord sitting upon a throne, high and lifted up; and the train of his robe filled the temple.
Isaiah 6:1

God wears a priestly robe with a ritual hem akin to the bells and pomegranates of Aaron or the tzitziyot of every Israelite. Not literally, of course. He doesn't have a physical body on which to hang a physical robe.

The seraphim cover their faces and feet in God's presence. I wonder if they consider themselves unclean by comparison. God's presence is frequently marked by fire and lightning with smoke and deep darkness. He can be kind and gentle, but his full presence is unimaginably dangerous.