The Perpetuity of the Seventh-Day Ordinance is a religious book written by Richard Ball in 1857. The book argues for the continued observance of the seventh-day Sabbath, as opposed to the first-day Sabbath observed by many Christians. Ball uses scriptural evidence and references to nature to support his argument that the seventh-day Sabbath is a perpetual and unchanging ordinance. The book is intended for readers who are interested in religious debates...