Isaiah 6:2-6

2Attending him were mighty seraphim, each having six wings. With two wings they covered their faces, with two they covered their feet, and with two they flew.

3They were calling out to each other, “Holy, holy, holy is the Lord of Heaven’s Armies! The whole earth is filled with his glory!”

4Their voices shook the Temple to its foundations, and the entire building was filled with smoke.

5Then I said, “It’s all over! I am doomed, for I am a sinful man. I have filthy lips, and I live among a people with filthy lips. Yet I have seen the King, the Lord of Heaven’s Armies.”

6Then one of the seraphim flew to me with a burning coal he had taken from the altar with a pair of tongs.