Shabbos is our acknowledgement of Hashem as Creator of the Universe, whereas Rosh Chodesh demonstrates the role of mankind as the purpose of the Creation of this world. Shabbat, which demonstrates the Creation of the universe, together with Rosh Chodesh, which demonstrates Man’s role in Creation warrant a special beracha and a special declaration of G-d creating the world.
Thirty Days has September, April, June, November, Tishrei, Shvat, Nissan, Sivan, Av
and sometimes Cheshvan1 and Kislev.
How did our empirical calendar become so rigid and predictable
in advance? Come with me as we explore the history and foundations of the Jewish
Halachot of The special Musaf for Shabbat Rosh Chodesh.
Question: I realized in the middle of Musaf this Shabbat, that I was reciting the regular Shabbat Musaf rather than the special Musaf for Shabbat Rosh Chodesh. What should I have done?
Chassidic tradition emphasizes the cyclical, rejuvenating nature of time. In this respect Rosh Chodesh is most important. It tells us to stop, to think, and to clarify our role and aspirations in life in general, specifically in serving the Creator.
On the Sabbath before the New Moon there is a custom to announce the day (or days) of the week on which it will fall, and to recite a blessing, "that God should renew this coming month for us and the entire Jewish people for goodness and blessing."
Rosh Chodesh is a good time for self-renewal, and it therefore brings a special sense of joy. But the joy of Rosh Chodesh is not expressed outwardly as is the case with Jewish holidays. We must make an effort to absorb the sanctity of Rosh Chodesh.
Why are some Jews opposed to using the standard non-Jewish calendar? What is it exactly that bothers them about the usage of the accepted "fiscal" calendar, and of what great importance is the Hebrew calendar?