What does the Bible mean that a lion has a lion's mouth in a fire kiln?

The symbolic meaning of the lion in Christian images can be good, representing ferocity, courage and generosity, being a friend of a saint or a hero, or evil, representing cruelty, cruelty and bloodthirsty. It is an evil beast that pounces on good people and martyrs. But for better or worse, the lion is always a symbol of authority and strength.