What Is the Shofar? The Sound of Rosh Hashanah

Of all the instruments that have ever stood in a Jewish room, only one survived the Temple. The harps and the lyres and the silver trumpets are gone. What remains is the least musical object of them all: a hollowed animal horn, unpolished in its origins, played without keys or strings, capable of perhaps three or four notes. The shofar (שׁוֹפָר) is the oldest sound in Jewish life, and it is still the sound that opens the Jewish year.

What the Torah actually commands

Rosh Hashanah is never called the New Year in the Torah. It is called a day of sound. Vayikra 23:24 names it זִכְרוֹן תְּרוּעָה - "a remembrance of teruah" - and Bamidbar 29:1 calls it יוֹם תְּרוּעָה, "a day of teruah." The word teruah means a blast, a shout, a broken cry. The Torah does not explain it, does not interpret it, and does not say why. It simply says: on this day, make this sound.

Which means the central mitzvah of Rosh Hashanah is not a meal, not a text, and not a fast. It is listening. The blessing said over the shofar is not "to blow" but לִשְׁמוֹעַ קוֹל שׁוֹפָר - lishmoa kol shofar, "to hear the sound of the shofar." The one who blows fulfills the mitzvah only by hearing what he himself has made. Everyone in the room is doing the same thing.

Why a ram's horn

A shofar may be made from the horn of most kosher animals, but the ram is the classic and preferred choice, and the reason is a memory. In Bereishis 22, at the end of the Akeidah, Avraham lifts his eyes and sees a ram caught in the thicket בְּקַרְנָיו - "by its horns" - and offers it in place of his son. The Gemara in Rosh Hashanah (16a) puts the logic in God's own mouth: sound before Me with a ram's horn, so that the binding of Yitzchak will rise in remembrance before Me. The horn is a piece of evidence. It says: look what this family was willing to do.

One horn is excluded, and the exclusion is telling. The horn of an ox is not used, on the principle that an accuser cannot become a defender - the Golden Calf does not get to plead Israel's case on the Day of Judgment. Even the material carries an argument.

The three sounds

The shofar speaks in a fixed vocabulary of three:

• Tekiah - one long, unbroken blast. Whole.
• Shevarim - three medium blasts, from a root meaning "broken." The sound of groaning.
• Teruah - nine rapid staccato notes. The sound of weeping.

Every set opens and closes with tekiah, and the broken sounds are held in between: whole, shattered, whole again. That shape is the whole theology of the day in miniature.

Why both shevarim and teruah? Because the Sages were genuinely unsure what the Torah's teruah sounded like. The Gemara (Rosh Hashanah 33b) frames the doubt as a question about a cry - is a teruah a groaning, or a wailing? Rather than choose, the practice sounds all the possibilities, including shevarim-teruah together. Jewish law, faced with a lost sound, decided to make every sound it might have been. There is something moving in that: the tradition would rather cry twice than risk crying wrong.

The widespread custom is to hear one hundred sounds over the course of Rosh Hashanah, and a tradition links that number to the hundred cries of the mother of Sisera as she waited at the window for a son who would not come home (Shoftim 5:28). The sound of the Jewish new year, on this reading, is borrowed from the grief of an enemy's mother - a startling admission that the day's judgment is over all the world's sorrow, not only ours.

A sound with no words

The Rambam gives the most quoted explanation of what the shofar is for. Though the mitzvah is a decree of the Torah, he writes, there is a hint in it: awake, sleepers, from your sleep, and examine your deeds (Hilchos Teshuvah 3:4). Not repent, exactly - wake up. The shofar is aimed at the person who is not doing anything wrong so much as not quite present.

This is also why it is not music. A wordless, unbeautiful blast gets past the part of us that manages language. It arrives before we have time to arrange a response, which is what makes it the right instrument for teshuvah - the return that the whole month of Elul is built around. From the first day of Elul, the shofar is sounded each weekday morning after prayers, so that by Rosh Hashanah a person has been quietly asked the same question thirty mornings in a row.

When the shofar is silent

Two silences frame the day. The first is small: the shofar is not sounded on erev Rosh Hashanah, breaking the Elul rhythm on the last morning to separate the custom of the month from the mitzvah of the day itself.

The second is larger, and it applies this year. When the first day of Rosh Hashanah falls on Shabbos, the shofar is not sounded at all - a Rabbinic decree recorded in Rosh Hashanah 29b, out of concern that someone might carry a shofar through a public domain to an expert who could teach him to blow it. That is the case in 5787: Rosh Hashanah begins at sundown on Friday, September 11, 2026, so the first day falls on Shabbos, Saturday the 12th, and the shofar is heard only on the second day, Sunday, September 13. (For the rest of the year's dates, see every Jewish holiday date for 2026-2027.) Practice around a Shabbos Rosh Hashanah varies in its details by community - as always, ask your Rav.

The shofar returns ten days later for one last note: a single tekiah gedolah at the close of יוֹם כִּפּוּר, held as long as the breath lasts, when the fast ends and the gates close. It is the same horn, and it means something entirely different - not wake up, but it is finished, go home.

The shofar that has not been blown yet

The horn also points forward. Vayikra 25:9 has the shofar sounded on Yom Kippur of the fiftieth year to proclaim liberty through the land - the Yovel, when debts release and land returns to its family. And Yeshayahu 27:13 promises a day when יִתָּקַע בְּשׁוֹפָר גָּדוֹל - "a great shofar will be sounded" - and the lost and scattered are gathered home. Freedom, memory, and ingathering all arrive by the same sound.

You do not need to know any of this to fulfill the mitzvah. You need to be in the room, and quiet, and listening. That is a fair description of most mitzvos, and of most of what the year ahead will ask.

Bayit keeps the weekly parsha, daily tefilah, and Shabbos and holiday times in one quiet place - so the season arrives with you already listening.