Shabbat (; , "rest" or "cessation") or Shabbos (, ) (English: 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 and, with adaptations, throughout the Abrahamic and many other religions.