What are the sources and meaning of Rosh Chodesh Cheshvan?

Prompt

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Sources: all collections; answered in English in the Essay style.

The Answer in Brief

Rosh Chodesh Cheshvan — the new month of Cheshvan, also called Marcheshvan — carries a distinct identity within the Jewish calendar shaped by several converging themes. The name itself is disputed and symbolically loaded: according to [Ta'amei HaMinhagim 836:1], the prefix mar ("bitter" or "drop") recalls the Flood, which began in this month. The Kabbalistic tradition in [Bnei Yissaschar, Cheshvan.1:1:1] assigns this month a unique divine Name, a tribal affiliation with Menashe, and the sense faculty of smell. Most strikingly, [Bnei Yissaschar, Cheshvan.1:2:5; 1:2:8] develops the tradition that the Third Temple will be dedicated in Cheshvan, correcting an ancient sin committed during this very month. Halakhic sources confirm that the seventh of Cheshvan marks the beginning of the prayer for rain in the Land of Israel [Peninei Halakhah, Prayer 25:4:4], and [Megillat Ta'anit] records several historical events that made specific days in Cheshvan semi-festive occasions in Second Temple times.

Background

The Hebrew calendar assigns each of the twelve months a position in the annual cycle. [Sefer Yetzirah Gra Version 5:5] lists all twelve in sequence: "Nissan, Iyar, Sivan, Tamuz, Av, Elul, Tishrei, Cheshvan, Kislev, Tevet, Shevat, Adar." Cheshvan is thus the eighth month, coming immediately after Tishrei — the month of Rosh Hashanah, Yom Kippur, and Sukkot — and before Kislev, the month of Chanukah.

The month goes by two names. In biblical Hebrew it appears as Bul: [Metzudat Zion on I Kings 6:38:1] explains, "Bul — this is Cheshvan, in which the leaves of the trees wither and fall." This is the name used in the Book of Kings when describing the completion of Solomon's Temple. In post-biblical usage the Babylonian name Marcheshvan (or Marheshvan) dominates, later contracted to Cheshvan. The prefix mar has generated considerable discussion, as detailed below.

Structurally, Cheshvan is one of the two "flexible" months in the Hebrew calendar. [Kitzur Shulchan Arukh 221:4] notes that Cheshvan is sometimes full (thirty days, making Rosh Chodesh Kislev two days) and sometimes deficient (twenty-nine days, making Rosh Chodesh Kislev one day). [Matteh Dan, Fifth Dialogue 29:1] flags this structural variability as a distinctive calendrical question: "Why are MarChesvan and Kislev sometimes both full, or both lacking, or Cheshvan lacking and Kislev full?" The answer to that calendrical question lies in the arithmetic of the molad (lunar conjunction) and is not addressed in the sources provided here, but the question itself signals that Cheshvan's length is not fixed.

The month's spiritual profile is developed primarily in Hasidic literature, especially the Bnei Yissaschar of Rabbi Tzvi Elimelech of Dinov (early 19th century), which devotes a full chapter to Cheshvan and draws on Kabbalah, midrash, and tribal mysticism. The halakhic significance of Cheshvan centers on the prayer for rain: the seventh of Cheshvan is the date, in the Land of Israel, when Tal U'Matar (the prayer for dew and rain) is inserted into the Amidah. This date is tied to the agricultural calendar of the Land of Israel and appears in both Talmudic and post-Talmudic sources.

The term Rosh Chodesh itself means "the head of the month" and designates the day (or two days) marking the new lunar month. [Notes by Rabbi Yehoshua Hartman on Be'er HaGolah, Well 6.7:73] notes that Rosh Chodesh is called mo'ed ("appointed time") in the Talmud (citing Pesachim 77a) and shares a dimension of sanctity with the festivals. [Ibn Ezra on Numbers 11:20:1] explains that chodesh yamim ("a full month") alludes to "the time it takes for the moon's light to return to its original amount," grounding the concept of the month in the lunar cycle.

The Sources

The Name: Mar, Bul, and Marcheshvan

The month's very name is its first interpretive problem. [Metzudat Zion on I Kings 6:38:1] provides the earliest layer: "Bul — this is Cheshvan, in which the leaves of the trees wither and fall." This is the biblical name, used in I Kings 6:38 to date the completion of Solomon's Temple, and it roots the month's identity in the agricultural reality of late autumn in the Land of Israel — a season of decay and dormancy.

The later name Marcheshvan adds the prefix mar, and [Ta'amei HaMinhagim 836:1] explains the dominant midrashic reading: "When we bless the month of Cheshvan we say Marcheshvan, because it is stated in Midrash Tanchuma that when the Flood was decreed, it was to be rain and downpour for forty days — beginning from this month. Therefore it is called mar, meaning 'a drop,' as in the verse ke-mar mi-dli ('like a drop from a bucket')." The word mar here is not "bitter" but mar in the sense of a drop or trickle, evoking the opening of the Flood waters. This midrashic etymology connects the month permanently to the narrative of Noah, the Flood, and the beginning of divine judgment through water.

The Sense of Smell and the Tribe of Menashe

[Bnei Yissaschar, Cheshvan.1:2:1] opens with a citation from Sefer Yetzirah: "In Sefer Yetzirah it states that the letter nun was crowned in the sense of smell (chush ha-rei'ach), and it was bound and crowned and combined — and through it the sign of Scorpio (Akrav) was formed in the universe, Marcheshvan in the year, and the large intestines (dakkin) in the human soul (the aspect of Zu"n)." The question the Bnei Yissaschar then poses is: what is the connection between the letter nun, the sense of smell, the zodiac sign of Scorpio, and the month of Marcheshvan?

[Bnei Yissaschar, Cheshvan.1:3:1] answers part of this: "According to the order of the tribal banners, this month is associated with Menashe. With him was created the sense of smell — and it is a thing from which the soul derives pleasure. Therefore the month is associated with Menashe, whose letters spell neshamah (soul)." This is a characteristic Hasidic move: the letters of Menashe (מנשה) are rearranged to spell neshamah (נשמה, soul), and since smell is the sense most associated with the soul (the Talmud says the soul enjoys smell while the body does not), the entire complex — Menashe, soul, smell, Marcheshvan — coheres as a single symbolic unit.

The same passage adds a biblical confirmation: "Since the sense of smell was created with this month, it is also written of Noah, when he left the ark in this month, 'And the Lord smelled (va-yarach) the pleasing aroma' — understand this." The verb va-yarach (he smelled) in Genesis 8:21, describing God's response to Noah's offering after the Flood, is taken as a textual anchor: smell, Noah, and Marcheshvan are linked not only by midrashic association but by the biblical narrative itself.

The Three Autumn Months and the Children of Rachel

[Bnei Yissaschar, Cheshvan.1:2:3] situates Marcheshvan within a larger structure: "These three months, according to the order of the tribal banners and the tribes, are: Tishrei associated with Ephraim, Marcheshvan with Menashe, Kislev with Benjamin. You will find that the dedication of all three Temples falls in months associated with the children of Rachel — for she is called akeret ha-bayit (the foundation of the house)." Rachel's three sons — Ephraim and Menashe (sons of Joseph) and Benjamin — each correspond to one of the three consecutive autumn months, and the three Temples are each dedicated in one of these months. The passage adds a mnemonic: the initials of Tishrei, Marcheshvan, and Kislev (ת-מ-כ) form the word tamekh ("support"), from the verse "Support my steps in Your paths, that my feet not slip" (Psalms 17:5).

The Third Temple and the Sin of Marcheshvan

This structural observation leads to the most dramatic theological claim in the sources. [Bnei Yissaschar, Cheshvan.1:2:5] states: "Since Israel sinned and said in this month, 'See your house, David' — therefore, at the time of the future repair (tikkun), the king of the House of David, our righteous Messiah, will reign, and the Temple will be inaugurated in Marcheshvan, and the world will be repaired through kingship." The historical sin referred to is the rebellion of the northern tribes after Solomon's death, when they rejected Davidic rule with the words "What portion do we have in David?" (I Kings 12:16) — an event associated with the month of Marcheshvan.

[Bnei Yissaschar, Cheshvan.1:2:8] sharpens this: "The dedication of the Temple in the future — may it be rebuilt speedily — will be by our righteous Messiah who comes from David. Its inauguration will be in Marcheshvan, for it was then that Israel sinned and said 'We have no portion in David.' In that very month will come the repair, and the world will be repaired through kingship." The logic is one of tikkun — rectification: the month in which a sin was committed is the month in which it will be repaired. The First Temple was dedicated in Tishrei (the month of Ephraim), the Second Temple was rededicated in Kislev (Chanukah, the month of Benjamin), and the Third Temple will be inaugurated in Marcheshvan (the month of Menashe).

[Bnei Yissaschar, Cheshvan.1:2:4] adds a further dimension from his teacher: "From all this we derive that the inauguration of the hoped-for future Temple will be in this month, Marcheshvan. And there is great reason for this, according to what I heard from my master, the holy rabbi, that we see that all the new decrees against Israel's enemies from the kingdoms, as well as the imposition of taxes and levies, always begin from Marcheshvan." The month's association with governmental power and fiscal authority gives it a connection to the theme of malkhut (kingship), which will be corrected and elevated in the messianic era.

The Divine Name and Kabbalistic Structure

[Bnei Yissaschar, Cheshvan.1:1:1] opens the chapter by identifying the particular configuration of the divine Name (tziruf ha-shem) that "illuminates" during this month: "The combination of the honored Name that illuminates in this month — it is Heh-Vav-Heh-Yod, derived from the verse in parashat Ki Tavo: 'and honey, today, the Lord' (u-devash ha-yom ha-zeh Hashem) — the initial letters of these words, in gematria equal sixteen, which is the Yod-Vav form of the Tetragrammaton, and also equals twice the value of Yitzchak." This is the standard Kabbalistic framework of the Bnei Yissaschar, which assigns each month a specific permutation of the four-letter divine Name and draws out its numerical and textual resonances.

Halakhic Observances Tied to Cheshvan

On the practical level, the most significant halakhic marker of Cheshvan is the prayer for rain. [Peninei Halakhah, Prayer 25:4:4] records: "The custom in many places on Rosh Chodesh night is that the gabbai announces 'Ya'aleh V'Yavo' before the Amidah, and on the night of the seventh of Cheshvan, when we begin to ask for rain, the gabbai declares 'Tal U'Matar.'" The seventh of Cheshvan is the date set by the Talmud for the last pilgrims from Jerusalem to reach home after Sukkot, after which it is appropriate to begin praying for rain. [Bartenura on Mishnah Taanit 1:4:1] confirms the calendrical sequence within Cheshvan: "The seventh of Marcheshvan — and three time periods have already passed — which are the third of Mar Cheshvan, the seventh, and the seventeenth of the month."

Historical Events in Cheshvan: Megillat Ta'anit

[Megillat Ta'anit, Cheshvan.1] records a Second Temple-era event: "On the twenty-third of Marcheshvan, the partition (suriga) was removed from the Temple courtyard." [Megillat Ta'anit, Cheshvan.2] explains the context: Gentiles had built a structure in the Temple courtyard and placed precious stones there that could not be moved until Elijah would come to determine their ritual status. When the stones were hidden away, that day was made a minor holiday. [Megillat Ta'anit, Cheshvan.3] notes: "On the twenty-fifth of the month, Samaria's wall was seized." [Megillat Ta'anit, Cheshvan.5] adds: "On the twenty-seventh of the month, the basket of first-fruits (sulta) was restored to be brought up to the altar." These entries — days of Temple restoration and national restoration — were observed as minor festive occasions in Second Temple times.

Where They Agree and Disagree

The sources converge on several points and diverge on others.

On the name: All sources that address the name agree it is Marcheshvan in full, with the prefix mar. [Ta'amei HaMinhagim 836:1] gives the midrashic etymology of mar as "drop" (related to the Flood), which is distinct from the popular folk etymology of mar as "bitter" (the only month without a holiday). The sources here do not present the "bitter" reading, though it circulates widely in popular tradition. [Metzudat Zion on I Kings 6:38:1] supplies the biblical name Bul without comment on mar at all — these two sources are simply addressing different layers of the name's history.

On the month's spiritual character: The Bnei Yissaschar is the dominant voice here, and within his own system there is internal consistency: smell, Menashe, the soul, Noah, and the Third Temple all cohere. No source in the collection contradicts this framework, though the halakhic sources ([Kitzur Shulchan Arukh 221:4], [Peninei Halakhah]) operate entirely independently of it, addressing calendrical structure and liturgical practice without engaging Kabbalistic themes.

On the Third Temple: The claim that the Third Temple will be dedicated in Marcheshvan is specific to [Bnei Yissaschar, Cheshvan.1:2:4; 1:2:5; 1:2:8] and is presented as a Kabbalistic-midrashic tradition, not a legal ruling. No other source in the collection confirms or contests it. It is an aggadic-theological position, not a matter of halakhic dispute.

On Rosh Chodesh generally: The sources on Rosh Chodesh practice ([Peninei Halakhah, Zemanim 1:6:9; 1:14:2], [Arukh HaShulchan 425:4], [Notes by Rabbi Yehoshua Hartman on Be'er HaGolah, Well 6.7:73]) apply to all months equally and do not single out Cheshvan. They establish the sanctity of Rosh Chodesh as a category but do not differentiate between months.

The one genuine tension is between the month's apparent emptiness — no major holidays, no special Torah readings unique to it — and the rich significance the Bnei Yissaschar finds in it. The tradition itself acknowledges this: the month that seems most barren is, in the Hasidic reading, precisely the one reserved for the greatest future event.

Conclusion

Rosh Chodesh Cheshvan marks the beginning of a month whose identity is layered across several registers. Its biblical name Bul signals autumnal decay [Metzudat Zion on I Kings 6:38:1]. Its post-biblical name Marcheshvan carries the memory of the Flood [Ta'amei HaMinhagim 836:1]. Its most significant halakhic marker is the prayer for rain, initiated on its seventh day [Peninei Halakhah, Prayer 25:4:4]. Its Kabbalistic profile, developed by [Bnei Yissaschar], assigns it the sense of smell, the tribe of Menashe, and a messianic destiny: the Third Temple, whose dedication was displaced by ancient sin, will be inaugurated in this month, turning the month of loss into the month of ultimate repair. Rosh Chodesh Cheshvan is thus not merely the opening of an uneventful month but the threshold of a month that the tradition has freighted with both memory and anticipation.

References

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