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.
Leviticus 24:2-4
2
"Command the children of Israel, that they bring to you pure olive oil beaten for the light, to cause a lamp to burn continually.
3
Outside of the veil of the Testimony, in the Tent of Meeting, shall Aaron keep it in order from evening to morning before Yahweh continually: it shall be a statute forever throughout your generations.
4
He shall keep in order the lamps on the pure gold lampstand before Yahweh continually.
