Rabbi Yonah Gross

Mezuzah and More

246 Lloyd Ln.

Wynnewood, PA 19096

(484) 318-9303



November 28, 2019

When determining the kashrus of tefillin the most obvious issue is how often, if ever, should tefillin be opened for the parshios (writing) to be examined. Many are surprised to learn that the Shulchan Aruch (39:10) records that tefillin that are in regular use need not be checked as they have a continued chazaka (assumption) of being kosher. Nevertheless...

November 28, 2019

I remember learning in elementary school that there are 600,000 letters in a Sefer Torah and that each represents one of the souls that left Egypt. There was also an added lesson: when one letter of the Torah is damaged or incomplete the entire Torah is Passul and must be corrected. Likewise, each and every Jew is essential to the Jewish people.

What is th...

October 24, 2019

On October 24th, 2019 I had the privilege of participating in the completion of a Sefer Torah at Kohelet Yeshiva. Read more about it here.  

September 25, 2019

On which side of the door should the mezuzah be placed?

A mezuzah is placed on the right side of the doorway as one enters the room. We are commanded U’Ktavtam Al Mezuzot Beitecha, “you shall write it on the doorposts of the home” (Deut. 6:9). The Talmud (Menachos 34a) derives the word biascha which means “to come in” from the word beisecha and teache...

September 24, 2019

The first clear sign that a home belongs to a Jew is the mezuzah on the front door. While it is hard to imagine a case where the front door would not require a mezuzah, there are several halachik issues to consider.

Which door is the front door?

It’s not always obvious, and the answer to this question often has important ramifications for other doorways in...

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