Sabbatarianism

thumb|300px|Sabbath Eve, painting by Alexander Johnston (artist)|Alexander Johnston thumb|300px|Christian denominations teaching first-day Sabbatarianism, such as the Free Presbyterian Church of Ulster, observe the Lord's Day as a day of worship and rest. 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.