Isaiah 6:1-2

Young's Literal Translation

6 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.

² 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.