Who was the first Seventh-day Adventist author to publish a tract about the Sabbath?

Joseph Bates was the first Seventh-day Adventist author to publish a tract specifically addressing the Sabbath, which played a crucial role in shaping the understanding of this doctrine within the denomination. His work on the Sabbath was foundational, as Bates argued for the observance of Saturday, the seventh day, as the biblical Sabbath. This publication, titled "The Seventh-day Sabbath: A Perpetual Sign," emphasized the significance of the Sabbath in the context of biblical instruction and church practice.

Bates' advocacy for the Sabbath was instrumental in the early formation of Seventh-day Adventist beliefs and practices. He was a key figure in the movement, and his writings helped to establish a strong theological foundation for the community regarding Sabbath observance, contributing to the development of a distinct identity for the church. His efforts inspired many others in the movement to explore and affirm the importance of the Sabbath, marking a significant moment in the history of the Seventh-day Adventist Church.