Sabbatarianism advocates the observation of the Sabbath in Christianity, in keeping with the Ten Commandments.
The observance of Sunday as a day of worship and rest is a form of first-day Sabbatarianism, a view which was historically heralded by nonconformist denominations, such as Congregationalists, Presbyterians, Methodists, Moravians, Quakers and Baptists, as well many Episcopalians. Among Sunday Sabbatarians (First-day Sabbatarians), observance of the Lord's Day often takes the form of attending the Sunday morning service of worship, receiving catechesis through Sunday School, performing acts of mercy (such as evangelism, visiting prisoners in jails and seeing the sick at hospitals), and attending the Sunday evening service of worship, as well as refraining from Sunday shopping, servile work, playing sports, viewing the television, and dining at restaurants. The impact of first-day Sabbatarianism on Western culture is manifested by practices such as Sunday blue laws.
Seventh-day Sabbatarianism is a movement that generally embraces a literal reading of the Sabbath commandment that provides for both worship and rest on Saturday, the seventh day of the week. Judaism has observed a sabbath on the seventh day since antiquity, following the creation account in Genesis 2 which unambiguously states that God blessed and sanctified the seventh-day, having rested on the seventh day from all his creation which God had made to do. Seventh Day Baptists leave most other Sabbath considerations of observance to individual conscience. The Sabbatarian Adventists (Seventh-day Adventist Church, Davidian Seventh-day Adventists, Church of God (Seventh Day), and others) have similar views, but maintain the original, scriptural duration as Friday sunset through Saturday sunset. The Orthodox Tewahedo Churches in Ethiopia and Eritrea observe the seventh-day Sabbath, as well as Sunday as the Lord's Day. Likewise, the Coptic Church, another Oriental Orthodox body, "stipulates that the seventh-day Sabbath, along with Sunday, be continuously regarded as a festal day for religious celebration.