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.
Isaiah 6:2-4 New International Version (NIV)
2 Above him were seraphim, each with six wings: With two wings they covered their faces, with two they covered their feet, and with two they were flying. 3 And they were calling to one another:
“Holy, holy, holy is the Lord Almighty;
4 At the sound of their voices the doorposts and thresholds shook and the temple was filled with smoke.