The mezuzah has nothing to do with Passover.
Mezuzah
From Wikipedia, the free encyclopedia
mezuzah (Hebrew: מְזוּזָה "doorpost") (plural: mezuzot (מְזוּזוֹת)) is a piece of parchment (often contained in a decorative case) inscribed with specified Hebrew verses from the Torah (Deuteronomy 6:4-9
and 11:13-21
These verses comprise the Jewish prayer "Shema Yisrael", beginning with the phrase: "Hear, O Israel, the LORD our God, the LORD is One"
A mezuzah is affixed to the doorframe of every room apart from the bathroom in a Jewish homes to fulfill the mitzvah (Biblical commandment) to inscribe the words of the Shema "on the doorposts of your house" (Deuteronomy 6:9
Jewish law requires a mezuzah on every doorway in the home apart from bathrooms, and closets too small to qualify as rooms; but many families only place one in the front doorway.<1> The parchment is prepared by a qualified scribe (a "sofer stam") who has undergone many years of meticulous training, and the verses are written in black indelible ink with a special quill pen. The parchment is then rolled up and placed inside the case.
More:
http://en.wikipedia.org/wiki/MezuzahSecondly, I believes both The Bible and The New Testament are public-domain documents.
Thirdly, the whole "blood of Christ" thing has nothing to do with The Blood Libel:
Blood libel against Jews
From Wikipedia, the free encyclopedia
Blood libels against Jews are false accusations that Jews use human blood in certain aspects of their religious rituals and holidays. Although the first known instance of blood libel against Jews was in the writings of Apion, an early 1st century pagan Greco-Egyptian who claimed that the Jews sacrificed Greek victims in the Temple, no further incidents are recorded until the 12th century, when blood libels began to proliferate in Christian Europe. Blood libel accusations have often asserted that the blood of Christian children is especially coveted, and historically blood libel claims have often been made to account for otherwise unexplained deaths of children. In some cases, the alleged victim of human sacrifice, child or adult, has become venerated as a martyr, a holy figure around whom a martyr cult might arise. A few of these have been even canonized as saints. These libels have persisted among some segments of Christians to the present time, and recently Muslims as well. In Jewish lore, blood libels were the impetus for the creation of the golem of Prague (a commonly known Jewish legend) by Rabbi Judah Loew ben Bezalel, the Maharal. Many popes have either directly or indirectly condemned the blood accusation, and no pope has ever sanctioned it,<1> though the assertions are usually spread and promoted by local clergy.
More:
http://en.wikipedia.org/wiki/Blood_libel_against_JewsHowever, the guy is still a giant bag of douche.
I have a traditional Mezuzah on my house, even though I'm a Jewish Atheist. I think I paid like $50 for it. $300 is a rip-off.