'Oil' in the Bible

You prepare a table before me in the presence of my enemies.You have anointed and refreshed my head with oil;My cup overflows.

You have loved righteousness (virtue, morality, justice) and hated wickedness;Therefore God, your God, has anointed YouAbove Your companions with the oil of jubilation.

The words of his mouth were smoother than butter,But his heart was hostile;His words were softer than oil,Yet they were drawn swords.

“I have found David My servant;With My holy oil I have anointed him,

But my horn [my emblem of strength and power] You have exalted like that of a wild ox;I am anointed with fresh oil [for Your service].

And wine which makes the heart of man glad,So that he may make his face glisten with oil,And bread to sustain and strengthen man’s heart.

He clothed himself with cursing as with his garment,And it seeped into his inner self like waterAnd like [anointing] oil into his bones.

Let the righteous [thoughtfully] strike (correct) me—it is a kindness [done to encourage my spiritual maturity].It is [the choicest anointing] oil on the head;Let my head not refuse [to accept and acknowledge and learn from] it;For still my prayer is against their wicked deeds.