Why does the Torah mention Aharon?
Rashi: To teach us that the Kohanim distribute the Minchah only after the Kohen Gadol has taken his pick.
Why does the Torah add "me'Ishei Hashem"?
Rashi: To teach that they may only distribute the portions of the Korban after the part that is burned has been placed on the Mizbe'ach.
What are the ramifications of the fact that the Torah refers to the Sheyarei Minchah as "Kodesh Kodshim"?
It teaches us that the Minchah must be eaten in the Azarah by male Kohanim only.