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Three Weeks Laws and Customs

Three Weeks Laws and Customs

A 21 Day Period of National Mourning


For eight hundred and thirty years there stood an edifice upon a Jerusalem hilltop which served as the point of contact between heaven and earth. So central was this edifice to the relationship between man and G‑d that nearly two-thirds of the mitzvot are contingent upon its existence. Its destruction is regarded as the greatest tragedy of our history, and its rebuilding will mark the ultimate redemption-the restoration of harmony within G‑d's creation and between G‑d and His creation.

A full three weeks of our year--the three weeks "between the strictures"1 of Tammuz 17 and Av 9--are designated as a time of mourning over the destruction of the Holy Temple and the resultant galut--physical exile and spiritual displacement--in which we still find ourselves.

In this period, many calamities befell the Jewish people throughout the generations. It was during this period of between the straits that both the first and second Temples were destroyed.

During this period, we lessen the extent of our rejoicing. We don't:

  • Conduct weddings. (Engagement parties – without music – are allowed until Rosh Chodesh Av.)
  • Play musical instruments or listen to music.
  • Recite the Shehecheyanu blessing. Thus, we do not wear new clothing or eat fruit which we have not yet eaten this season so that we will not be required to recite Shehecheyanu.
  • Take a haircut or shave. Many Sephardic communities permit haircuts and shaving until the week of Tisha b'Av (in other words, until the Saturday night before the fast).

(Speak to your rabbi if there are extenuating circumstances that prevent you from observing any of the above customs.)


All the laws of mourning are suspended on ShabbatAll the laws of mourning are suspended on Shabbat.2 This includes the 17th of Tammuz and the 9th of Av3 themselves—when they fall on Shabbat, the fast days are postponed until Sunday, and the Shabbat is joyously celebrated. The Rebbe stated on numerous occasions that on these Shabbats we must increase our joy, and add an extra tasty dish to our meals, to emphasize that we are not in a state of mourning.

On the first Shabbat of the Three Weeks (or on the 17th of Tammuz itself, if it falls on Shabbat) we almost always read the Torah portion of Pinchas. The end of the reading discusses the three Jewish festivals. It has been said amongst chassidim that this alludes to the idea that the three Shabbats of the Three Weeks are to be celebrated on par with the three festivals...

Why is all mourning suspended on Shabbat?

Though these days and weeks heralded an exile rife with persecution and spiritual estrangement, it is our belief that ultimately this is for the good. Very soon, with the coming of Moshiach, we will understand that all the suffering was necessary in order to reach the ultimate good. At that time, the prophets foretell, these sorrowful days will be transformed into days of joy (see Breaking Walls for more on this topic).

Every Shabbat constitutes a foretaste of the Messianic Era. As such, on Shabbat we only focus on the positive element of this period.

Determination to Rebuild

Aside from the aforementioned "technical" rules and restrictions, during this period we spend extra time contemplating the less-than-perfect state the world is in now and what we can do to improve it by increasing in deeds of goodness and kindness.

The Rebbe urged that the Three Weeks should be a time of increased Torah study and giving of charity– in keeping with the verse,4 "Zion shall be redeemed by law, and her returnees by charity." Particularly, the Rebbe requested time and again the study of those portions of Torah that deal with the building of the Holy Temple.

The Three Weeks should be a time of increased Torah study and giving of charityWhy these laws? The Rebbe based his request on a dialogue, cited in the Midrash,5 that transpired after G‑d told the Prophet Ezekiel to instruct the then exiled Jewish People about the measurements and design of the third Holy Temple:

"Master of the world," Ezekiel replied, "why are You telling me to go and tell Israel the form of the House; they are now in exile in the land of our enemies—is there anything they can do about it? Let them be until they return from the exile. Then, I will go and inform them."

G‑d answered: "Should the construction of My House be ignored because My children are in exile? The study of the design of the Holy Temple as detailed in the Torah can be equated to its actual construction. Go tell them to study the form of the Holy Temple. As a reward for their study and their occupation with it, I will consider it as if they actually built the Holy Temple."

It is our generation in particular, that stands on the threshold of Redemption, that must study these laws with the awareness that these laws will be quite practical in the imminent future!

Visit our Holy Temple section to start your virtual tour of the Temple.

From Destruction to Renewal

But there is more to the Three Weeks than fasting and lamentation. The prophet describes the fasts as "days of goodwill before G‑d"-days of opportunity to exploit the failings of the past as the impetus for a renewed and even deeper bond with G‑d. A sense of purification accompanies the fasting, a promise of redemption pervades the mourning, and a current of joy underlies the sadness. The Ninth of Av, say our sages, is not only the day of the Temple's destruction--it is also the birthday of Moshiach.

May we soon merit the fulfillment of the prophecy: "I will turn their mourning into joy and will comfort them and make them rejoice from their sorrow" (Jeremiah 31:12).


This is based on the verse (Lamentations 1:3) which states: "All of [Israel's] pursuers overtook her between the straits." The Sages (Eichah Rabbah 1) explained that "between the straits" refers to the days of affliction between the seventeenth of Tammuz and the ninth of Av.


The only exception being that in many communities – including Chabad – we don't recite the Shehecheyanu even on Shabbat.


If the 9th of Av falls on Shabbat (or if Shabbat is on the eve of the 9th of Av) there are certain mourning observances practiced in private—though this doesn't interfere with the public festive atmosphere. Click here for the details.


Tanchuma, Leviticus 14.

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Discussion (47)
August 14, 2016
Can you enter a pool & clean / empty during the nine days?
August 11, 2016
Re: Birthday
It depends on what you have in mind with a birthday celebration. If you mean a birthday party bash, then it should be done after the nine days. You can however celebrate by gathering a few close friends for a time of inspiration and new resolutions as outlined in Jewish Birthday in a Minute .This should of course be done without any music or meat etc. conforming to the laws of the nine days
Yehuda Shurpin for
August 2, 2016
Re: Fishing in a pond
If it is a completely safe environment and you will not be entering the water then it should be fine.
Eliezer Zalmanov
July 31, 2016
My birthday is on the 7th of Av. Since this falls in the nine days do the restrictions of no celebration apply?
Kansas City
July 30, 2016
Fishing in a pond
Can Someone go fishing in a pond without doing things like going in the water or doing something that is obviously dangerous.
New York
July 28, 2016
Are we allowed to go to cemetery this three weeks?
July 27, 2016
Why is the question of a woman dying her hair not being answered time after time? I would like to know for myself as well. Is it because it is assumed your hair would be covered so it is never dealt with? Just trying to figure out what to do. Thanks!
Lawrence NY
July 24, 2016
Beautiful art
Very beautiful artwork in this article.
Tel Aviv
July 19, 2016
I am a sargent of Brazilian Army. If it's obligatory to work, may I cut my hair and shave?
Thiago Konkowski
August 5, 2015
Can you have a get during the month of Av?
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