Why does the Torah write "u've'Roshei Chodsheichem" (your Roshei Chodesh), which it does not do for other Yamim-Tovim?
Seforno: Because of Yisrael's self-imposed custom 1 to treat Rosh Chodesh as a sort of mini-Yom-Tov. 2
Seforno: Like we find in Shmuel 1, 20:19.
Seforno: Perhaps the reason for this is because Yisrael's destiny, which is dependent upon Hashem, is similar to that of the moon, which is dependent upon the sun for its light.
Why does the Torah write "u've'Roshei Chodsheichem" (plural), whereas by Shabbos, it writes 'u've'Yom ha'Shabbas" (singular)?
Oznayim la'Torah: Because, whereas each Shabbos is independent, and not connected to the one before , the twelve months, are all part of the year - which is why they are called 'Chodesh ha'Rishon, Chodesh ha'Sheini and Chodesh ha'Shelishi'.
?Parim b?nei Bakar ? ve?Ayil ? ?. What is the significance of the four kinds of animals - the bulls, the ram, the lambs and the goat - that were brought as a Musaf on Rosh Chodesh?
R. Bachye (citing Bamidbar Rabah): The bulls corresponded to Avraham; 1 the ram, to Yitzchak; 2 the lambs, to Ya?akov, 3 and the goat, to the tribes (the brothers). 4 5
R. Bachye: As the Torah writes in Bereishis 18:7 ?ve?el ha?Bakar Ratz Avrahm?.
R. Bachye: As the Torah writes in Bereishis 22:13 ?ve?Hinei Ayil Achar Ne?echaz ba?Sevach?.
R. Bachye: As the Torah writes in Bereishis 30:40 ?ve?ha?Kevasim Hifrid Ya?akov?.
R. Bachye: As the Torah writes in Bereishis 37:31 ?Vayishchatu Se?ir Izim?.
See R. Bachye who goes into detail and who also explanis why there were three Esronim of flour for a bull, two for a ram and one, for a lamb. He also explains the significance of the six Lugin (half a Hin) for a bull, the four Lugin (a third of a Hin) for a ram and the eighteen k?Beitzim (a quarter of a Hin for a lamb - in Pasuk 14. Refer also to 28:19:1:1.
