Isaiah 6:1-3

In the year that King Uzziah died, I saw the Lord. He was sitting on his throne, high and exalted, and his robe filled the whole Temple. Round him flaming creatures were standing, each of which had six wings. Each creature covered its face with two wings, and its body with two, and used the other two for flying. They were calling out to each other: “Holy, holy, holy! The LORD Almighty is holy! His glory fills the world.”