Like charcoal is to burning coals, and wood to fire, so is a contentious person to kindle strife.

A blacksmith works with his tool and forges metal over the coals. He forms it with hammers; he makes it with his strong arm. He gets hungry and loses his energy; he drinks no water and gets tired.

Look, I create the craftsman, who fans the coals into a fire and forges a weapon. I create the destroyer so he might devastate.