Isaiah 6:2-4

Amplified Bible

² Above Him seraphim (heavenly beings) stood; each one had six wings: with two wings he covered his face, with two wings he covered his feet, and with two wings he flew. ³ And one called out to another, saying,

⁴ And the foundations of the thresholds trembled at the voice of him who called out, and the temple was filling with smoke.