Coal

“For in so doing, you will heap burning coals on his head, and the LORD will reward you.”

“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.”

“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.””

“Now the whole clan has risen up against your maidservant and said, ‘Hand over the one who struck down his brother, that we may put him to death for the life of the brother whom he killed. Then we will cut off the heir as well!’ So they would extinguish my one remaining ember by not preserving my husband’s name or posterity on the earth.””