Isaiah 6:1-3

In the year of King Uzziah’s death I saw the Lord sitting on a throne, lofty and exalted, with the train of His robe filling the temple.

Seraphim were standing above Him, each having six wings: with two each covered his face, and with two each covered his feet, and with two each flew.

And one called out to another and said, “Holy, Holy, Holy, is the Lord of armies. The whole earth is full of His glory.”