Isaiah 6:2-4 New Life Version (NLV)
2 Seraphim stood above Him, each having six wings. With two he covered his face, and with two he covered his feet, and with two he flew. 3 One called out to another and said, “Holy, holy, holy, is the Lord of All. The whole earth is full of His shining-greatness.” 4 And the base of the doorways shook at the voice of him who called out, while the house of God was filled with smoke.