Isaiah 6:5-8

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.

7He touched my lips with it and said, “See, this coal has touched your lips. Now your guilt is removed, and your sins are forgiven.”

8Then I heard the Lord asking, “Whom should I send as a messenger to this people? Who will go for us?” I said, “Here I am. Send me.”