Isaías 6

5 Then I said, The curse is on me, and my fate is destruction; for I am a man of unclean lips, living among a people of unclean lips; for my eyes have seen the King, the Lord of armies.

6 Then a winged one came to me with a burning coal in his hand, which he had taken from off the altar with the fire-spoon.

7 And after touching my mouth with it, he said, See, your lips have been touched with this; and your evil is taken away, and you are made clean from sin.