Isaiah 6:1-3

In the year of King Uzziah’s death, I saw ADONAI sitting on a throne, high and lifted up, and the train of His robe filled the Temple. Seraphim were standing above Him. Each had six wings: with two he covered his face and with two he covered his feet, and with two he flew. One called out to another, and said: “Holy, holy, holy, is ADONAI-Tzva’ot! The whole earth is full of His glory.”