Thursday, September 06, 2007

Postponing Yom Kippur

The Gemora asks: Yom Kippur that falls out on a Monday should be postponed until Tuesday because of the concern that he will slaughter a young bird on Shabbos to prepare for the feast that will be held on the day prior to Yom Kippur?

The Pnei Yehoshua asks: It would emerge that Rosh Hashanah would be on A Sunday, and we have a principle that Rosh Hashanah may not occur on Sunday, Wednesday or Friday?

He answers: The reason that Rosh Hashanah may not occur on a Tuesday is because then, Hoshanah Rabbah will fall out on Shabbos; that is also a preventive measure. The decree based on the concern of slaughtering a young bird takes precedence over the decree of taking the aravos on Shabbos. The reason is: Here, there are no other options; by Hoshanah Rabbah, there is an option, namely, not to take the aravos on Shabbos, just like the shofar is not blown and the lulav is not taken on Shabbos.

The Chasam Sofer answers: While it’s true that if Yom Kippur is postponed until Tuesday, Hoshanah Rabbah will fall out on Shabbos, it is nevertheless preferable to uphold the decree of not slaughtering a young bird on Shabbos and sounding the shofar on Rosh Hashanah, even though we will forfeit the mitzvah of taking the aravos on Hoshanah Rabbah. Two is better than one.


Samuel Kosovsky said...

I don't quite understand the wording of the Gemara. We know that Chazal determined lo adu Rosh. As the Pnei Yehoshua says Rosh Hashana can't come out on Sunday, Wednesday and Friday. They set up the calendar in such a way so that Yom Kippur can't come out on Tuesday, Friday or Sunday. It's not that we can postpone Yom Kippur. It must come out on the 10th of Tishrei. The only leeway we have is to work out the first day of Rosh Hashana. I think that's what was meant by the hava amina of postponing Yom Kippur - postponing Rosh hashana so that it can't come out on Shabbos. In that way Yom Kippur wouldn't come out on Monday.

Avromi said...

Reb Samuel, You are quite right; postponing Yom Kippur means that we will delay the starting time of Tishrei, i.e. Rosh Hashanah.

Aryeh Shore said...

As the Rambam pointed out, the discussions of wilted vegetables and killing birds are not the real reasons. The real reason is it is necessary for the calculation of the year which the common man would not find of much motivation. Or as the Ravid says ad locum "what is this old man talking about".
As for the gemara, there was apparantly a period before the takana for ad"u rosh, that the tekana for yom kippur applied first.

Avromi said...

Reb Aryeh, what Rambam and Raavad are you referring to? The Rambam rules that one may not get married on Sunday because of the "killing birds." As to Yom Kippur, the sevara of "killing birds" is not brought down l'halacha because it was only the Gemora's question; Why don't we apply this decree here? The Gemora was referring to the time after the takanah, but nevertheless asked its question. That's why the Pnei Yehoshua, Chasam Sofer and Gilyon Tosfos look for ways to reconcile this question with the rule of "lo adu Rosh."

Chaim said...

If "Two is better than one" is said, isn't that in conflict with Pirkei Avos and elsewhere that we cannot know the relative merit of two mitzvos? Which would mean that the one could in fact be worth more than the two put together!

Avromi said...

I hear your point, but I would say in regards to gezeiros midrabbanan; if we are upholding two gezeiros and forfeiting one, it is more preferable, (I am not certain regarding this, and I will look again at the Chasam Sofer.)