'Coal' in the Bible

Behold, the whole family has risen against your handmaid, and they say, 'Deliver him who struck his brother, that we may kill him for the life of his brother whom he killed, and so destroy the heir also.' Thus they would quench my coal which is left, and would leave to my husband neither name nor remainder on the surface of the earth."

Then one of the seraphim flew to me, having a live coal in his hand, which he had taken with the tongs from off the altar.

Behold, they shall be as stubble; the fire shall burn them; they shall not deliver themselves from the power of the flame: it shall not be a coal to warm at, nor a fire to sit before.

Their appearance is blacker than a coal; they are not known in the streets: Their skin clings to their bones; it is withered, it is become like a stick.