(24)Speak to the children of Israel, saying: In the seventh month, on the first of the month, it shall be a Sabbath for you, a remembrance of [Israel through] the shofar blast a holy occasion.
ר' אבא בר פפא א"ר יוחנן ורשב"ל הוון יתיבון מקשיי אמרין תנינן י"ט של ר"ה שחל להיות בשבת במקדש היו תוקעין אבל לא במדינה אין דבר תורה הוא אף בגבולין ידחה אין לית הוא דבר תורה אף במקדש לא ידחה עבר כהנא אמרין הא גברא רבה דנישאול ליה. אתון שאלון ליה אמר לון כתוב אחד אומר (במדבר כט) יום תרועה וכתוב אחד אומר (ויקרא לג) זכרון תרועה הא כיצד בשעה שהוא חל בחול יום תרועה בשעה שהוא חל בשבת זכרון תרועה מזכירין אבל לא תוקעין. ר' זעירה מפקד לחבריי' עולון ושמעין קליה דרבי לוי דרש. דלית איפשר דהוא מפיק פרשתיה דלא אולפן. ועל ואמר קומיהון כתוב אחד אומר יום תרועה וכתוב אחד אומר זכרון תרועה הא כיצד בשעה שהוא חל בחול יום תרועה בשעה שהוא חל בשבת זכרון תרועה מזכירין אבל לא תוקעין.
(ו) יוֹם טוֹב שֶׁל רֹאשׁ הַשָּׁנָה שֶׁחָל לִהְיוֹת בְּשַׁבָּת אֵין תּוֹקְעִין בַּשּׁוֹפָר בְּכָל מָקוֹם. אַף עַל פִּי שֶׁהַתְּקִיעָה מִשּׁוּם שְׁבוּת וּמִן הַדִּין הָיָה שֶׁתּוֹקְעִין יָבוֹא עֲשֵׂה שֶׁל תּוֹרָה וְיִדְחֶה שְׁבוּת שֶׁל דִּבְרֵיהֶם. וְלָמָּה אֵין תּוֹקְעִין גְּזֵרָה שֶׁמָּא יִטְּלֶנּוּ בְּיָדוֹ וְיוֹלִיכֶנּוּ לְמִי שֶׁיִּתְקַע לוֹ וְיַעֲבִירֶנּוּ אַרְבַּע אַמּוֹת בִּרְשׁוּת הָרַבִּים. אוֹ יוֹצִיאוֹ מֵרְשׁוּת לִרְשׁוּת וְיָבוֹא לִידֵי אִסּוּר סְקִילָה. שֶׁהַכּל חַיָּבִים בִּתְקִיעָה וְאֵין הַכּל בְּקִיאִין לִתְקֹעַ:
(6) [When] the holiday of Rosh Hashanah falls out on Shabbat, we may not blow the shofar in any place. [This is the case] even though blowing [the shofar] was forbidden only on account of a Shabbat decree; so it would have been appropriate that we would blow — a positive commandment of the Torah would come and override a Shabbat decree from the words [of the Sages]. So why do we not blow? [Because of] a decree lest one take it in his hand and carry it to someone to blow for him, and [in the process,] carry it four ells in the public domain, or transfer it from one domain to another — and come to a prohibition [punishable by] stoning. [This is necessary because] all are obligated in blowing [the shofar], but not all are expert at blowing [it].
(ח) כשם שחתימתן של ראש השנה ויום הכפורים משונה משאר ימים טובים כך תפלתן ואין מזכירין (זכרונות) בשלשה ראשונות ובשלשה אחרונות אלא בב' ימים טובים של ר"ה וביום הכפורים בלבד ואף באלו בקושי התירו אם חלה ראש השנה להיות בשבת אינו אומר יום תרועה אלא זכרון תרועה לפי שאין תקיעת שופר דוחה את השבת בגבולין משום גזירה:
(8) As the concluding words [of the benedictions] of the New Year and the Day of Atonement are different from those of other Festivals, so are the prayers of these days; and we do not include ‘remembrance’35‘Remember us unto life’, etc. (P.B., p. 239). either in the first three36‘Blessed art Thou … the holy God’ (ibid. pp. 44f). or last three37‘Accept O Lord … with peace’ (ibid. pp. 50-54). [benedictions of the ‘Amidah] except only on the two Festival days of the New Year and Day of Atonement38Cf. ibid. pp. 239, 256. and, even with these, permission was given with difficulty.39Because, as a rule, no break is allowed in these benedictions. If the New Year falls on a Sabbath, one does not say ‘A day of blowing the Shofar’ but ‘a day of remembrance of blowing the Shofar’, because the blowing of the Shofar does not take precedence of the Sabbath in country towns,40Outside Jerusalem. This was permitted in the Temple only (Rashi). According to Maimonides the permissibility extended to all Jerusalem. this being a preventive measure.41One might carry the Shofar on the Sabbath through a public domain to an instructor to take lessons in the art of blowing it.
The accomplishment of the shofar is to renew G‑d's pleasure in His works, especially this world, so that there will be a desire to continue infusing His works with the life force necessary for their continued existence. If He delights in us, then He has reason to continue creating us, reason to continue His relationship with us. (For more on this, see The Kabbalistic Spin on Rosh Hashanah.)
The principal theme of Shabbat is also pleasure, delight and desire. "Call the Shabbat a delight," the prophet enjoins us—which we accomplish by partaking of sumptuous meals. And that which G‑d instructs us to do, He also does Himself.13 If so, on Shabbat the delight and desire to continue with our world and with our relationship is already there—no need to blow the shofar to renew it.
(Nevertheless, there are many gradations to pleasure. The level of Divine pleasure evoked through blowing the shofar in the Holy Temple – the location where G‑d's essence was manifest – is greater than the pleasure naturally activated on Shabbat. As such, the shofar is sounded in the Temple even when Rosh Hashanah falls on Shabbat.)
Soon, we hope to merit hearing the "great shofar" that will be sounded on the day of the Redemption: "And it shall come to pass on that day, that a great shofar shall be sounded, and those lost in the land of Assyria and those exiled in the land of Egypt shall come, and they shall prostrate themselves before G‑d on the holy mount in Jerusalem."
The "great shofar" symbolizes the ultimate level of pleasure, far greater even than the pleasure evoked in the Holy Temples of yore: the pleasure that G‑d takes in each and every one of His children. It is this pleasure that will be felt and manifest.
Indeed it is this immense revelation, this grand sounding of the shofar, that will reach the hearts of even the most distant of Jews – those lost in the land of Assyria and exiled in the land of Egypt – and kindle within them the desire to return to where they really belong: the holy mount in Jerusalem.
When Rosh HaShanah falls out on Shabbat, the shofar is sounded in…an internal fashion…
When Rosh HaShanah falls out on Shabbat, the shofar is sounded in the Mikdash, but not in the Medina. We sound the shofar in an internal fashion, but without the actual shofar. The intentions underlying the shofar are realized only in the internal aspect. When Rosh HaShanah falls on Shabbat, the blowing of the shofar is a sublime, spiritual action which must take place in the inner recesses of one's heart, and in the depths of one's soul.
Blow the shofar on the day of new moon... (Psalms 81:4)
In Hebrew, "Tiku ba'chodesh shofar, ba'keseh l'yom chagainu", literally "Blow the shofar when the moon is covered", i.e. when the moon is small, on the 1st day of the month. The acrostic of the verse contains the letters tav, beit, shin, beit, which, when rearranged, spell "B'Shabbat" - "on Shabbat". On Shabbat the blowing of the shofar is in a covered, hidden way. One may still reach the deepest levels of the mitzvah of shofar, yet without the actual shofar. They are accomplished in a hidden place; in one's heart and through one's intentions.
Happy is the nation that knows Terua [the shofar blast], they walk in the light of your countenance, G‑d. (Psalms 89:16)
The Zohar (III, 233b) points out that the verse doesn't state, "happy is the nation that hears Terua", or "happy is the nation that blows "Terua", but "happy is the nation that knows "Terua". They know the secret of the Terua, as it is written, "Shatter (in Hebrew, "Teraim") them with an iron rod". (Psalms 2:9) Terua is derived from the root "to break" or "shatter", hence the broken notes of the shofar.
The first day of the seventh month shall be a sacred holiday to you when you may not do any mundane labor. It shall be a day of Terua for you.(Num. 29:1)
The Torah instructs us how to sweeten and break the severity of any judgment pending against us on Rosh HaShanah. ". . .it shall be a day of Terua for you." When Rosh HaShanah falls out on Shabbat, a Jew must make it a day of Terua in its inner dimension. A Jew must shatter his stony heart into pieces until his ego is completely nullified and he can honestly declare, "I, and everything that I possess is for G‑d alone".
The Zohar speaks about a watchman who points out each Jew to the heavenly court, "This one did this mitzvah, and this one committed this transgression". But when a Jews appears before G‑d with a broken heart, his ego erased and his only desire to do the will of G‑d, then there is no "one", no individual who can be accused of any transgression. The severity of the judgment has been sweetened and has nowhere to make itself manifest.