Fire
Fire, in the spiritual sense, can mean either love or hatred depending on the context, just as natural fire can be either comforting in keeping you warm, or scary in burning down your house. Our language reflects this, too -- we use concepts like a smoldering hatred or a burning love. So fire signifies a love, either a good love of the neighbor and to the Lord, or, in a bad sense, selfish love of oneself that, if unchecked by conscience, leads to hatred of anyone that opposes it.
Exodus 12:8-10
8
They shall eat the flesh in that night, roasted with fire, and unleavened bread. They shall eat it with bitter herbs.
9
Don't eat it raw, nor boiled at all with water, but roasted with fire; with its head, its legs and its inner parts.
10
You shall let nothing of it remain until the morning; but that which remains of it until the morning you shall burn with fire.
