The primary purpose of hanging a mezuzahs is to fulfill the biblical command. The Biblical source of the mitzvah of mezuzah is found in the Torah in the book of Deuteronomy. It is written: "And you shall write them on the entryways of your dwellings and your gates". A mezuzah is a small box or case housing a mezuzah scroll and is affixed to the doorway. The mezuzah scroll is the most important part of a mezuzah, as it contains the blessings.
For a mezuzah scroll to be kosher it cannot be printed from a computer or written in ball point pen. The process of writing a mezuzah scroll is similar to that of writing a Torah. The mezuzah scroll must be handwritten by a Sofer (observant Jewish scribe), on parchment made from the skin of a kosher animal. A mezuzah scroll contains 22 lines of 713 letters. The text in the mezuzah scroll is the passages of Deuteronomy 6:4-9 and Deuteronomy 11:13-21. The text on each scroll must be written perfectly and in the correct order. The text is written with special ink made from vegetables and is written with a quill from a kosher fowl such as a goose or turkey.
The mezuzah scroll is carefully checked by an expert for textual errors and incorrectly formed letters. Any mistakes and the parchment is invalidated. The mezuzah scroll is rolled, placed inside a mezuzah and affixed to the post on the right side of entry.
Mezuzahs are supposed to be affixed to the doorpost of each room in the home and places of business, except for the bathrooms.
While some mezuzahs come with a mezuzah scroll, many do not. It is always important to ensure you have a kosher mezuzah scroll for your mezuzahs. For more information or for questions regarding mezuzah scrolls feel free to contact our Judaica experts.