'Coals' in the Bible

[The] {ironsmith} works in the coals [with his] tool and forms it with hammers. And he makes it with {his strong arm}; indeed, he becomes hungry, and {he lacks} strength; he does not drink water, and he is faint.

And {no one takes it to heart}, and [there is] no knowledge and no understanding to say, "I burned half of it in [the] fire and also I baked bread on its coals; I roasted meat, and I have eaten. And I shall make [the] rest of it into an abomination! I shall bow down to a block of wood!"

Look! I myself have created [the] craftsman who blows [the] fire [of] coals, and who produces a weapon for his work; also I myself have created [the] destroyer to destroy.