Isaiah 6:5-6

Then I stammered and said, “Woe is me! I’m destroyed —doomed as a sinful man! For my words are tainted and I live among people who talk the same way. King YAHWEH, Commander of Angel Armies—my eyes have gazed upon him!” Then out of the smoke, one of the angels of fire flew to me. He had in his hands a burning coal he had taken from the altar with tongs.