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31
votes
9answers
2k 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 ...
31
votes
11answers
6k 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 ...
23
votes
7answers
4k 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?
4
votes
1answer
197 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?
7
votes
1answer
630 views

Hashems name on device

Is there any issue regarding deleting electronic files with Hashem's Name, and also is there any issue taking such a device into the bathroom.
26
votes
5answers
3k views

Is it possible for a Gentile to convert to Judaism?

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 ...
17
votes
6answers
851 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 ...
9
votes
2answers
380 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 ...
23
votes
3answers
4k 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 ...
22
votes
4answers
837 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: ...
21
votes
8answers
646 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"?
29
votes
3answers
1k 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 ...
11
votes
4answers
865 views

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

This year, 5772, 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?
4
votes
3answers
2k 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 ...
23
votes
2answers
393 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 ...
12
votes
3answers
679 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 ...
21
votes
2answers
2k 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? ...
19
votes
4answers
2k 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?
18
votes
2answers
652 views

When (if ever) are converts still related to their relatives?

It is my understanding that when a person converts to Judaism, certain halachic relationships are severed. So I have a couple questions about this. Which relationships are severed? Is a convert ...
13
votes
3answers
365 views

Loshon Hara against an Online Identity

Does the prohibition of Loshon Hara apply when the target is an online name or identity, where the person behind it is anonymous, such as an anonymous user on this forum ?
7
votes
1answer
247 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?
17
votes
3answers
1k 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 ...
53
votes
5answers
3k 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 ...
33
votes
7answers
2k 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 ...
24
votes
4answers
1k 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 ...
16
votes
1answer
419 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.
14
votes
2answers
866 views

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

This answer to a question about melacha before havdalah notes that in that situation one should say "baruch hamavdil bein kodesh l'chol" first. Does that apply to lighting the havdalah candle? I ...
6
votes
3answers
379 views

What's the deal with all the washings?

Sometimes we wash with a cup, sometimes not; sometimes we wash twice, sometimes thrice; and not everyone agrees on method or pattern in all cases. Who says which ways we are supposed to wash, in ...
16
votes
2answers
471 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
1answer
2k views

Mixed swimming in a pool?

What are the issues with mixed swimming, from a tzniut point of view? Does it make a difference if the swimmers are or aren't Jewish? For example, are there issues with me swimming with my wife and a ...
10
votes
2answers
251 views

May I rely on the halachik leniency of others?

If "Reuven" believes the halacha to be one way and "Shimon" believes it to be more lenient may Reuven rely on Shimon to do something for him based on this leniency? Here is a 100% fictional ...
3
votes
3answers
4k views

Is it permissible for a Jewish woman to marry a Muslim man and vice versa?

As both Abrahamic religions, Islam and Judaism have the same God and share a common law then how do Rabbis see the marriage of a Jewish woman marrying a Muslim man and vice versa? Also how is it like ...
8
votes
3answers
1k views

Do you have to close your blog / website on shabbos?

Do you have to close your blog on shabbos?
18
votes
3answers
712 views

Can an ecommerce website remain open on Shabbat?

This question is more general and doesn't apply specifically to ecommerce sites even though the discussion mentions them a little. Specifically, we know we can't do business on Shabbat. So what is ...
12
votes
3answers
693 views

Am I allowed to view a Kotel Cam on Shabbos?

If there is a camera in Israel that is operating on Shabbos, am I (a person living in America, where Shabbos only starts 6 or 7 hours later) allowed to view such a camera? I suppose the same could be ...
8
votes
3answers
1k views

Cash value of 'perutah'

How much is a 'perutah' worth in modern currency?
7
votes
1answer
2k 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 ...
6
votes
2answers
1k 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 ...
5
votes
2answers
248 views

Time for t'filah and you don't have a siddur: better to daven from memory or wait (and possibly miss the time)?

If the set time comes to daven (on a weekday, let's say) and you unexpectedly don't have a suitable (or any) siddur,1 does halacha call for you to wait (and possibly miss that amidah entirely), or ...
17
votes
7answers
906 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. ...
16
votes
1answer
495 views

Why don't we bow “correctly” during tefillah anymore?

According to the Gemara (Megillah 22b), and according to the RaMBa"M (Hil. Tefillah 5:13) (and apparently R' Avraham ben HaRaMBa"M was adamant), when we pray we are supposed to bow down ON our knees ...
11
votes
2answers
584 views

Is there any issue with using aerosols on Shabbos?

I've heard from many people that you shouldn't use aerosols (such as air fresheners, disinfectants or deodorants) on shabbos, usually citing some vague reason of changing the form from liquid to gas, ...
11
votes
1answer
1k views

Is downloading pirated music stealing?

Either way, it should be frowned upon as not a nice thing to do, but would it actually be assur?
10
votes
4answers
633 views

Is it permissible to name one's child with a name from the opposite gender?

Is a person allowed to name a boy with a girl's name and vice versa? I remember seeing that one musn't, although in Nach one finds these things a lot. I understand it is not best practice for ...
9
votes
2answers
383 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 ...
7
votes
9answers
714 views

Kabala in Halacha

Which of the major authors or codifiers of halacha. . . a) refer directly to or quote from kabala in their legal discussions? b) employ conclusions based only on kabala in their legal argumentation ...
24
votes
3answers
2k 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 ...
15
votes
4answers
3k views

Taking a concubine (pilegesh) today

Moderator's note: As with all discussions of Jewish law on this site, any information included in this question or its answers is presented only for the purpose of understanding the relevant ideas, ...
11
votes
1answer
351 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 ...
10
votes
4answers
680 views

Is cross-dressing permitted on Purim and if so why?

As part of dressing in costume on Purim is a person allowed to put on clothes normally worn by the opposite gender? If so, where does this heter come from in the face of the biblical prohibition ...