Isaiah 6:2-4

2Seraphim were standing above Him, 1each having six wings: with two each covered his face, and with two each covered his feet, and with two each flew. 3And one called out to another and said, “2Holy, Holy, Holy, is the Lord of armies. The 34whole earth is full of His glory.” 4And the 5foundations of the thresholds trembled at the voice of him who called out, while the 67temple was filling with smoke.