In 1708, Sabbatarian Church of God leader John Maudin, wrote a book titled "The pious Young Man Guide: Or a Compendium and Useful Catechism for Children, and All Young Persons" under the pen name Philotheos (lover of God). It is a discussion between a father and son on why to live according to God's ways and some of how to do so. It also includes warnings about those who claim to teach according to scripture, but instead are deceivers. Listening to Jesus, repentance, the purpose of life, supporting the work, the Ten Commandments, and other matters are discussed. Dr. Thiel also quotes many scriptures that were in or pointed to in this 18th century writing which shows continuity over the past three-plus centuries (Dr. Thiel accidentally stated four centuries in the message--but did point to 1708; whereas it was the Sardis era began just over four centuries ago).
More on the Church of God during the Sardis era can be found in the article "5. The Sardis Church Era" URL: https://www.cogwriter.com/sardischurc...