Because they're commanded in the Torah (Deuteronomy ch.6). They represent the binding covenant with God.
Tefillin is not worn on the Sabbath and Jewish holidays.
On Orthodox Jewish men
it is called phylacteries( Tefillin in Hebrew) it is made of leather and in it there are chapters from the bible
phylacteries/tefillin
Tefillin (phylacteries). Deuteronomy ch.6.
Jerusalem.
Converted Jewish people do not do any special "proclaiming" of the land of Israel.
He wears tefillin and prays at the synagogue. He joins his father, grandfather, and older brothers (if he has any) in ALL Jewish adult responsibilities.
1. A head-covering such as a kippah or hat 2. Tallit (prayer-shawl) 3. Tefillin (phylacteries) The Tallit and Tefillin are worn only during the morning services.
i do not know ask jewish people
Tefillin are Phylacteries, the leather boxes containing Torah-parchments and worn on the arm and the head by Jewish males in the morning prayers.
Tefillin, (Hebrew: תפילין‎), also called phylacteries,are a pair of black leather boxes containing scrolls of parchment inscribed with biblical verses. The hand-tefillin, or Shel yad, is worn by Jews wrapped around the arm, hand and fingers, while the head-tefillin, or Shel rosh, is placed above theforehead. They serve as a "sign" and "remembrance" that God brought the children of Israel out of Egypt. According to Jewish Law, they should be worn during weekday morning prayer services.http://en.wikipedia.org/wiki/Tefillin