Shabbat (/ʃəˈbɑːt/; Hebrew: שַׁבָּת‎‎ [ʃa'bat], "rest" or "cessation") or Shabbos (['ʃa.bəs], Yiddish: שבת‎) or the Sabbath is Judaism's day of rest and seventh day of the week, on which religious Jews and certain Christians (such as Seventh-day Adventists and Seventh Day Baptists) remember the Biblical creation of the heavens and the earth in six days and the Exodus of the Hebrews, and look forward to a future Messianic Age. Shabbat observance entails refraining from work activities, often with great rigor, and engaging in restful activities to honor the day. Judaism's traditional position is that unbroken seventh-day Shabbat originated among the Jewish people, as their first and most sacred institution, though some suggest other origins. Variations upon Shabbat are widespread in Judaism