Oil -- typically olive oil -- symbolizes the good that comes from celestial love. Celestial love is love of the Lord, the highest and purest love we can have. The good of celestial love is the desire to be good springing from celestial love: Wanting to do the Lord's will because you love Him. That's not a state many reach, even in heaven, but it's a beautiful goal. This representation makes sense based on the idea that the sun -- the source of all natural light and heat, and thus all natural life -- represents the Lord, the source of all spiritual light, heat and life. Burning oil was the most pure fire available in Biblical times, thus the closest representation of the sun people could create.

It's easy to see the connection between judging and truth. In a court of law, the whole purpose of the judge is to find the truth. Any time anyone judges anything, we hope it is on the basis of the truth. It's no wonder, then, that judging and judgment in the Bible represent truth being put to work. Depending on the circumstances judging can be teaching truth, determining someone's character from truth or setting order to things according to truth. There is a twist, though -- when the Lord is referred to as a judge, it actually signifies Divine Good, rather than Divine Truth. This is because the Lord judges us ultimately from love, and his truth flows from that love.