1. Chinuch - Reason underlying Sefiras Ha'omer i.e. Matan Torah
2. Abarbanel - Significance of transitioning from Korban Ha'omer to the Shtei Ha'lechem of Shavuos - Animal to Human
3. Akaida - Describing two reasons behind the Torah not mentioning "Shavuos" as "Yom Matan Torahsainu"