In the
Hebrew Bible, very little is said about head coverage, besides the
Cohanim (priests) who were obligated to wear a
turban or hat as part of their Temple service. The Israelites most probably wore a head-dress similar to that worn by the
Bedouin. Later on, they likely adopted a turban-like head-dress more like that of the
fellahin, in which a cloth is wrapped around a cap placed on the head, as suggested by .
Yemenite Jews, in later generations, called the wrap around the cap a . In later centuries, we see testimonies in the
Talmud that only the extremely zealous covered their heads regularly, as a sign of respect for God. For example, Rabbi
Huna ben Joshua never walked four
cubits () with his head uncovered, saying "because the
Divine Presence is always over my head." However, such behavior was exceptional, and Jewish artwork of the Hellenistic period largely shows men with uncovered heads. In one place, the Talmud prescribes a blessing to be said upon "spreading a shawl upon [one's] head" in the morning; such covering seems to have been the practice of Torah scholars, or of married men. This practice may have been related the
Roman pileus (worn mainly by commoners and freed slaves); by covering the head, one symbolizes that he is a slave to God. Later
Halachic authorities debate as to whether covering the head at all times is required. According to some authorities, the practice has since taken on the force of law. The
Shulchan Arukh rules that Jewish men should cover their heads and should not walk more than four cubits bareheaded. Covering one's head is described as "honoring God". According to the
Mishnah Berurah, the
Achronim established a requirement to wear a head covering even when traversing fewer than four cubits, and even when one is standing still, indoors, or outside.
Kitzur Shulchan Aruch cites a story from the Talmud (
tractate Shabbat 156b) about
Rav Nachman bar Yitzchak, who might have become a thief had his mother not saved him from this fate by insisting that he cover his head, which instilled in him the fear of God. In Orthodox communities, boys are encouraged to wear a from a young age in order to ingrain the habit. The 17th-century authority
David HaLevi Segal held that the reason is to enforce the
Halachic rule to avoid practices unique to
non-Jews. Segal reasoned that, as Europeans are accustomed to going bareheaded, and their priests insist on officiating with bare heads, this constitutes a uniquely non-Jewish practice. Therefore, he concludes, that Jews are prohibited from behaving similarly, and thus must cover their heads. Other opinions were more lenient. According to
Maimonides, Jewish law requires a man to cover his head during prayer (but implicitly, not at other times).
Isaac ben Moses of Vienna (13th century) wrote that "our rabbis in France" customarily made blessings while bareheaded, though he criticized this practice. Other
Halachic authorities, like
Chaim Yosef David Azulai, hold that wearing a head covering is not required, but is rather a (an "expression of piety", i.e. praiseworthy but not required). In the 21st century, there has been an effort to suppress earlier sources that practiced this leniency, including erasing lenient
responsa from newly published books. Promotional images used by the Orthodox
Yeshiva University show board members bareheaded as late as 1954. In non-Orthodox communities, some women also wear , and people have different customs about when to wear a when eating,
praying,
studying Jewish texts, or entering a sacred space such as a synagogue or cemetery. The
Reform movement historically opposed wearing , but attitudes began to shift in the postwar era, as various social movements encouraged pride in cultural heritage. By the 1970s, the movement had returned to many traditional practices. In the 21st century, wearing a
kippah during Torah study and/or prayer has become common and accepted as an option among Reform men and women. in Poland. Collection of the
Auschwitz Jewish Center in Oświęcim soldier Lt.
Asael Lubotzky prays with and (box of scrolls) According to 20th-century rabbi
Isaac Klein, a male
Conservative Jew ought to cover his head when in the synagogue, at prayer or sacred study, when engaging in a ritual act, and when eating. In the mid-19th century, early Reform Jews led by
Isaac Mayer Wise completely rejected the after an altercation in which Wise's was knocked off his head. Nowadays, almost all Conservative synagogues require men to wear a head covering (usually a ), but in Reform synagogues there is no requirement. However, may be provided to anybody who wishes to wear them. == Types and variation ==