A basic idea about how the Torah distinguishes Judaism as life-affirming through the Kehuna.
Rashi joins the start of our parsha to the previous parsha, and links tum'a and tahara to the order of creation.
The authorization of Aharon Ha-Kohen takes into account the history of his leadership.
The first pasuk teaches us about each of the times Hashem spoke to Moshe Rabeinu, and perhaps suggests a moral message for our own interpersonal communication.
Zocher Ha'brit v' Zocher Chasdei Avot - He remembers the covenant, and He remembers the kindnesses of the Patriarchs.
The spiritual aspiration of Sefirat Ha-Omer is expressed in the opening words of the mitzva.