Isaiah 6:5-7

MSB(i) 5 Then I said: “Woe is me, for I am ruined, because I am a man of unclean lips dwelling among a people of unclean lips; for my eyes have seen the King, the LORD of Hosts.” 6 Then one of the seraphim flew to me, and in his hand was a glowing coal that he had taken with tongs from the altar. 7 And with it he touched my mouth and said: “Now that this has touched your lips, your iniquity is removed and your sin is atoned for.”