Isaiah 6:6-8

Then flew one of the seraphim unto me, having a live coal in his hand, which he had taken with the tongs from off the altar: and he touched my mouth with it, and said, Lo, this hath touched thy lips; and thine iniquity is taken away, and thy sin forgiven. And I heard the voice of the Lord, saying, Whom shall I send, and who will go for us? Then I said, Here am I; send me.