In the year that King Uzziah died, I saw the Lord seated on a throne, high and exalted, and the train of his robe filled the temple. Above him were seraphs, each with six wings: With two wings they covered their faces, with two they covered their feet, and with two they were flying. And they were calling to one another:
“Holy, holy, holy is the Lord Almighty; the whole earth is full of his glory.”
At the sound of their voices the doorposts and thresholds shook and the temple was filled with smoke.
“Woe to me!” I cried. “I am ruined! For I am a man of unclean lips, and I live among a people of unclean lips, and my eyes have seen the King, the Lord Almighty.”
Then one of the seraphs flew to me with a live coal in his hand, which he had taken with tongs from the altar. With it he touchd my mouth and said, “See this has touched your lips; your guilt is taken away and your sin atoned for.”
Then I heard the voice of the Lord saying, “Whom shall I send? And who will go for us? And I said, “Here am I. Send me!”
Isaiah 6:1-8