Sabbath in seventh-day churches

The seventh-day Sabbath, observed from Friday sunset to Saturday sunset, is an important part of the beliefs and practices of seventh-day churches. These churches emphasize biblical references such as the ancient Hebrew practice of beginning a day at sundown, and the Genesis creation narrative wherein an "evening and morning" established a day, predating the giving of the Ten Commandments (thus the command to "remember" the sabbath). They hold that the Old and New Testament show no variation in the doctrine of the Sabbath on the seventh day. Saturday, or the seventh day in the weekly cycle, is the only day in all of scripture designated using the term Sabbath. The seventh day of the week is recognized as Sabbath in many languages, calendars, and doctrines, including those of Catholic and Orthodox churches. It is still observed in modern Judaism in relation to Mosaic Law.

Catholic, Orthodox, and most Protestant denominations believe the Mosaic Law to be superseded. Yet it is only in the west that some Christians describe the sabbath as being transferred to Sunday, the first day of the week, merged with the day of Christ's resurrection, forming (in some traditions) a "Christian Sabbath".

"Seventh-day Sabbatarians" are Christians who seek to reestablish the practice of some early Christians who kept the sabbath according to normal Jewish practice. They usually believe that all humanity is obliged to keep the Ten Commandments, including the sabbath, and that keeping all the commandments is a moral responsibility that honors, and shows love towards God as creator, sustainer, and redeemer. Christian seventh-day Sabbatarians, arising from Adventist groups in the Millerite tradition, hold beliefs similar to that tradition that the change of the sabbath was part of a Great Apostasy in the Christian faith. Some of these, most notably the Seventh-day Adventist Church, have traditionally held that the apostate church formed when the Bishop of Rome began to dominate the west and brought heathen corruption and allowed pagan idol worship and beliefs to come in, and formed the Roman Catholic Church, which teaches traditions over Scripture, and to rest from their work on Sunday, instead of Sabbath, which is not in keeping with Scripture.

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