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3
votes
1answer
242 views

A new knife for Rosh Hashanah?

There is a custom to buy a knife for Rosh Hashanah: the qualifier is that the knife not be serrated. What is the source for this custom and what is the significance of the knife not having edges?
14
votes
1answer
613 views

What does this pointing hand symbol mean?

I've seen in the Shulchan Aruch the hand symbol ( ☜ ) appearing quite a few times. What does it do? Does it reference to mforshim on the side?
8
votes
3answers
2k views

Rainbow as a bad omen

There is a popular idea that seeing a rainbow is a bad sign, as if the world is deserving of a deluge (c"v) and the only reason Hashem does not do so is because of His promise. Is there any source for ...
16
votes
4answers
570 views

What is the source of the Magen Dovid (Star of David)?

What is the source of the Magen Dovid (Star of David) in Rabbinic Judaism? When was it first used, and for what?
10
votes
2answers
671 views

Is hamsa allowed?

Does the Halacha allow the use of a hamsa as a good luck charm, considering that it originated as a Muslim symbol?