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.

5063. CHAPTER 40

The opening section of the previous chapter contained an explanation of what the Lord said about the judgement on the good and on the evil, in Matthew 25:34-36. There now follows what He said after that,

Then the righteous will answer Him, saying, Lord, when did we see You hungry and feed You, or thirsty and give You drink? When did we see You a stranger and take You in, or naked and clothe You? When did we see You sick, or in prison, and come to You? But the King answering will say to them, Truly I say to you, Insofar as you did it to one of the least of these My brothers you did it to Me. Then He will also say to those on the left, Depart from Me, O cursed ones, into eternal fire prepared for the devil and his angels; for I was hungry and you gave Me no food, I was thirsty and you gave Me no drink, I was a stranger and you did not take Me in, naked and you did not clothe Me, sick and in prison and you did not visit Me. Then they also will answer Him, saying, Lord, when did we see You hungry or thirsty or a stranger or naked or sick or in prison and did not minister to You? Then He will answer them, saying, Truly I say to you, Insofar as you did not do it to one of the least of these you did not do it to Me. And these will go away into eternal punishment, but the righteous into eternal life. Matthew 25:37-46.