Isaiah 6:1-3

In the year of the death of king Uzziah — I see the Lord, sitting on a throne, high and lifted up, and His train is filling the temple. Seraphs are standing above it: six wings hath each one; with two [each] covereth its face, and with two [each] covereth its feet, and with two [each] flieth. And this one hath called unto that, and hath said: ‘Holy, Holy, Holy, [is] JEHOVAH of Hosts, The fulness of all the earth [is] His glory.’