Isaiah 6:5-8

5Then I said, ‘It is bad for me! My life is at an end! I have lips that are unclean. I live among people with lips that are unclean. With my own eyes I have seen the King, the Lord Almighty.’

6Then one of the seraphs flew towards me. In his hand was a piece of burning coal. He had used a tool to take it from the altar.

7He touched my mouth with the piece of coal. He said to me, ‘Look! This has touched your lips. It has taken away your sin. You are no longer guilty.’

8Then I heard the voice of the Lord God. He said, ‘Is there anyone that I can send with my message? Who will go on our behalf?’ I said, ‘I am here. Send me!’