The Jewish mitzvah to place a mezuzah on the doorpost of the home comes from Deut. 6:4-9, a well known passage commonly referred to as the Shema.
Attractive Design Mezuzah Case. Blessed are You G-d, Our G-d, King of the universe who has sanctified us with his commandments, and has commanded us to affix a mezuzah.
G-d commands us to keep His words constantly in our minds and in our hearts by writing them on the doorposts of our home "Baruch Ata Ad-onoy E-loheinu Melech Ha-olam
Asher Kiddishanu Be-mitzvosav Vetzivanu Likboa Mezuzah."
This is a truly lovely item that is comforting to have on the doorpost of your home or to give as a truly special Judaica gift.