The mezuzah is a holy part of everyday Jewish life. Housing the scrolls on which two of the four passages used in Tefillin are hand printed, the mezuzah adds sanctity to the most holy aspects of daily Jewish life, the home. A mezuzah on every door will sanctify the holiness of every room in your house through the power of the words printed on the scrolls of every mezuzah : Deuteronomy 6:4-9 and 11:13-21.