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Questions tagged [halacha]

NOTE: Like Wikipedia, this site makes no guarantee of validity, and does not offer professional (particularly rabbinic) advice. Treat information from this site like it came from a crowd of your friends. // Jewish law. Specifically, the legal process beginning with the written Torah and continuing ...

54
votes
12answers
6k views

Why is it necessary to ask a Rabbi?

In various places on this site, including the FAQ, we have the following disclaimer: Like Wikipedia, this site makes no guarantee of validity, and does not offer professional (particularly rabbinic)...
17
votes
2answers
2k views

“Am I Jewish​​​?”

How can one tell if one needs to convert or if one is already Jewish? Would one's or one's ancestors' conversion to another religion or their lack of knowledge about Judaism change anything?
40
votes
16answers
13k views

Is Christianity Avodah Zara?

It is commonly accepted that Islam is not Avodah Zarah (idolatry) since Islam has a clear monotheistic theology with a belief in Allah that parallels our view of "kail" or Hashem. It is even ...
33
votes
7answers
8k views

Is one allowed to smoke Marijuana?

Not taking into account Dina D'malchusa, what are the Halachic problems with smoking marijuana? Is it allowed?
11
votes
1answer
1k views

Deleting files containing G-d's Name / taking the host device into the bathroom

Is there any issue regarding deleting electronic files with G-d's Name in them? Also, is there any issue with taking such a device into the bathroom?
22
votes
7answers
2k views

Halakhic International Date Line issues

According to halakha, where is the international date line? More specifically, I have heard that some people say you should observe Shabbat on Sunday in Japan & New Zealand and/or on Friday in ...
28
votes
8answers
1k views

Is one allowed to smoke?

Nowadays, since there are studies that show that smoking is dangerous to health, is one allowed to smoke or is it violating "Venishmartem Meod Lenafshosechem"?
7
votes
1answer
555 views

Halacha of Shechita

Which Sefer or Sefarim is/are used in practical application of Shechita? General Halacha follows the שלחן ערוך, but does it in all areas?
32
votes
5answers
6k views

Is it possible for a Gentile to convert to Judaism? [closed]

Is it possible for someone who is Gentile to convert to Judaism? What is the prevailing belief of Jewish people on this subject? What scripture backs up this belief? What do prominent Jewish ...
32
votes
3answers
10k views

Questions about Polygamy in Jewish Law and Culture

I've recently been looking into polygamy (having more than 1 wife), and had a few cultural questions. Was polygamy accepted at the time of David and Solomon? Were there any laws about it? Was ...
26
votes
5answers
1k views

Does artificial meat grown in a petri dish have the halachic status of meat?

Scientists are developing means of growing artificial meat in a petri dish. Does such 'meat' have the halachic status of meat? Source: http://www.reuters.com/article/2011/11/11/us-science-meat-f-...
8
votes
4answers
5k views

Jews allowed to pray and join Muslim congregation in Mosques and Experiences

I had read somewhere in Maimonidian literature that Jews are allowed to pray in Mosques. Is it even allowed for them to Join the Muslim congregation and pray the Salat for they worship the same God (...
16
votes
3answers
2k views

When does somebody living in space (e.g. ISS) observe Shabbat?

I understand that Jewish astronauts have been advised to observe Shabbat by Cape Canaveral time, by analogy with traveling to a place that doesn't have daily sunrise/sunset where some rule you use the ...
27
votes
3answers
4k views

Riding the Subway on Shabbat

Assuming that there are no problems regarding paying for it (either you entered the system before Shabbat, or a non-Jew paid for you): What are the halakhic issue with riding the subway on Shabbat? (...
11
votes
2answers
720 views

Halachot of Lashon Naki (clean speech)

What is the halachik source, if any, for lashon naki (clean speech)? Is there a portion of Talmud that deals with the specifics? On the surface, it seems to be employed inconsistently, by which I mean ...
17
votes
5answers
3k views

If the last day of Passover is Friday, may I eat chametz on the Shabbat right after?

This year, 5778, the last day of Pesach in Israel is on Friday. Is there any possible way that one could contrive to eat chometz on the shabbos immediately following Pesach?
67
votes
5answers
6k views

What is the halachic source for objection to gay (civil) marriage?

New York State is considering legalizing gay (civil) marriages, so tonight on our answering machine we received a message urging us to pray that it doesn't pass because gay civil marriages were, you ...
39
votes
7answers
5k views

Can a Jew lose their Jewish Status?

Can a Jew lose their status as being a Jew by performing any action (example: performing idolatry, disavowing core beliefs, converting to another religion, etc)? Or once a person is a Jew then they ...
23
votes
6answers
12k views

Is it a discouraged or an unacceptable practice for a Gentile to keep the Sabbath?

According to Jewish Law and tradition, is it acceptable, discouraged or totally unacceptable for a Gentile to keep the Sabbath according to the regulations spelled out in the Torah and the Talmud and ...
23
votes
1answer
806 views

Who is Moshiach?

How do I know that someone is Moshiach? Will I just know? Are there requirements? If someone tells me that he is the Moshiach, is he to be believed. It would seem seem strange to say so.
10
votes
2answers
3k views

What makes something “chukat goyim?”

One of the most famous examples I have heard is that one should not even tie one's shoes like the non-Jews do in times of persecution. That seems rather excessive. What if the Jews started doing some ...
6
votes
2answers
274 views

Is there such a thing as a Kaddish L'vatola?

In this answer there is a reference to a Kaddish that is better left unsaid as it is a Kaddish L'vatola. Kaddish does not seem to have anything in it which cannot be said in a vacuum. Is there any ...
29
votes
3answers
2k views

May one use a computer script or robot to do something specifically on Shabbos/Yom Tov?

May one run a program or machine that will operate on Shabbos, either by setting a timer to activate once Shabbos has started, or by leaving it running continually? What if the action is one that is ...
32
votes
4answers
5k views

What are the sources for women to wear/ not wear pants?

I have heard that the argument is beged ish / kli gever, and I have heard people say that even if that was once a real reason for it it doesn't apply today for various reasons. I understand that the ...
24
votes
4answers
4k views

Shaking hands with the opposite gender?

What's the story: Can a man shake hands with a woman (or vice versa) in a business setting?
16
votes
5answers
2k views

Sources For Listening To/Not Listening to Non-Jewish Music

What are sources for it being allowed to listen to non-Jewish music and sources for it being prohibited?
19
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3answers
2k views

Bli Neder Loophole

Who came up with the Bli Neder loophole of: Bli neder I will help you do X Or Bli neder I will etc... And the list can go on and on. Who came up with addingBli Neder which basically means "...
18
votes
2answers
1k views

Bootstrapping problem: havdalah ends shabbat (for one who didn't daven ma'ariv) but lighting the candle is melacha?

This answer (originally elsewhere, later merged here) to a question about melacha before havdalah notes that in that situation one should say "baruch hamavdil bein kodesh l'chol" first. Does that ...
15
votes
2answers
2k views

What is Maris Ayin?

What is the precise definition of Maris Ayin, and to what cases does it apply? (i.e. what are the parameters for applying it)
21
votes
6answers
1k views

Am I liable to be stoned for my devotion to Hashem and the Jewish people?

I have spent over 2 years to this day praying for the Jewish people from the Koren Siddur and Machzorim. I have with my Rebbe's help tried to follow Jewish customs and laws, to my best ability. ...
37
votes
7answers
3k views

Is it permissible to erase the name of G-d from an E-reader?

Most people seem to be lenient about shemos on digital screens in general (though Bar-Ilan does avoid displaying the Tetragrammaton.) The letters on the screen are just light, there is nothing really ...
28
votes
3answers
662 views

Is it a mitzva to escape the death penalty?

If someone is being led to his death by bes din (a Jewish court), is he supposed to try to escape, since, in general, saving one's own life is paramount? More: normally, we say that if someone is out ...
17
votes
3answers
802 views

Does a convert have a clean slate?

When a non-jew converts to Jusaism, must he still do teshuva from past sins, or does the "reborn" concept stretch far enough to consider him "sinless"?
15
votes
2answers
1k views

Are you allowed to benefit from an electrical appliance turned on during shabbos?

If a jewish person were to accidentally turn on the light in their bedroom, or if the television were accidentally turned on (for these purposes, let's assume that the person in question woke up, ...
13
votes
3answers
4k views

Cash value of 'perutah'

How much is a 'perutah' worth in modern currency?
9
votes
4answers
19k views

Rules for Cutting Nails

My question about nail-cutting is whether each of the following is halacha, minhag, or old-wives' tales. Not cutting both fingernails and toenails on the same day. Not cutting nails at night (is this ...
23
votes
5answers
1k views

Did the Rambam believe in magic?

If you read through Chapter 11 of the Rambam's laws on Idol Worship, you'll see what seems to be the Rambam forbidding anything that even resembles magic, all while calling such practices foolish and ...
21
votes
4answers
1k views

Can I cause a Melacha to happen in a place where Shabbat has already started?

Can I cause a Melacha to happen in a place where Shabbat has already started? For example, if I live in New York, could I send a fax (causing the machine to print a document) to Israel on Friday ...
11
votes
1answer
467 views

Should I say “amen” to a malformed bracha?

If I hear somebody substantially mispronounce a bracha, should I say amen anyway (recognizing the intent) or remain silent? I'm not talking about nuances like pronouncing 'ayin or distinguishing ...
11
votes
2answers
585 views

Are Jews permitted to martyr themselves?

Are Jews permitted to martyr themselves? For example, if it is a question of converting or being killed, is the Jew permitted to sacrifice himself rather than convert? Separately: which would be ...
8
votes
1answer
3k views

Prohibition of a Kohen marrying a Zonah

In the prohibition of a Kohen marrying a Zonah (cf. Vayikra 21:7), what defines a woman as a Zonah? Is it just having had relations with a non-Jew, or does it also include having relations out of ...
5
votes
3answers
498 views

Should someone who isn't 100% certain of God's existence be considered a kofer?

I was told by two respected Roshai Yeshiva that one who isn't certain of God's existence (an agnostic) is not deemed to be a kofer (denier of His existence) as long as he thinks that His existence is ...
13
votes
4answers
842 views

Limits to Dina Dmalchusa Dina

What are the specifications of Dina Dimalchusah? A more targeted question to answer would be: If I ripped off the label of my mattress — the label that says its removal is punishable by federal ...
10
votes
4answers
2k views

Is a Jew permitted to have an abortion?

Under what, if any, circumstances may a Jewish woman undergo an abortion? Can a Jewish doctor perform an abortion? As each case and individual is unique, please consult your rabbi for practical ...
8
votes
4answers
803 views

Kippa in Torah?

Where does it say in the Torah to wear a Kippa?
37
votes
1answer
1k views

Setting aside Shabbat to answer the President's call

In an old MSNBC news story about Jack Lew, a Shabbat-observant Jew who was just appointed to be the new White House Chief of Staff, there's a story about his getting a call from President Clinton when ...
19
votes
11answers
2k views

Is one a heretic if he does not believe in Kabbalah?

Is one a heretic if he does not believe in Kabbalah? Not necessarily that the Rashbi authored the Zohar, but in the general tenets of kabbalah including but not limited to: tzimtzum, sefirot, ...
26
votes
2answers
515 views

Is unmasking an anonymous author addressed by Halacha?

If an individual writes a document for public consumption anonymously or pseudonymously and either explicitly or presumably desires to remain anonymous, is there a Halachic issue with publicly ...
24
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24answers
1k views

SE Challenge: Halachot in which rulings range from permissible to Torah violation?

Inspired by my previous question regarding heating up soup on Shabbat, I present a challenge to the Judaism StackExchange community -- List halachot which have halachic decisions ranging from ...
15
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2answers
2k views

Is the material permitted to learn on Tisha B'av available online?

From Aish.com: Other prohibitions include...Learning Torah, since this is a joyful activity. It is permitted to learn texts relevant to Tisha B'Av and mourning -- e.g. the Book of Lamentations, ...