This book compiles in one document the contents of several smaller e-books: What Does the Bible Say About the Old and New Covenants?, Should Christians Keep Old Testament Laws?, Should Christians Keep the Annual Festivals God Gave the Ancient Israelites?, Which Old Testament Laws Apply to Christians Today?, What Does the Bible Say About the Sabbath?, The Christian Sabbath: Divine Rest in Jesus Christ, The Covenants and the Sabbath, Open Letters to an Adventist: Is the Sabbath a Ceremonial Law?, and Sabbath and Sunday in History. Although there is some inevitable repetition in these articles, they have been edited to provide a systematic study of this issue.The chapters in this e-book originated, for the most part, in the years 1995-1999 as our denomination re-examined the question of Old Testament laws. Although several Old Testament laws were foundational to our existence as a denomination, we studied them afresh from Scripture, and found that we had built on the wrong foundation. There was a tremendous cost, both financial and human, to our doctrinal change, but we were compelled by the word of God to change. You can read more about our doctrinal journey at www.gci.org/aboutus/history.The articles have all been edited in 2012-2014 by Michael Morrison. In some cases important edits were made because we have grown in our understanding of some topics since these articles were originally written. We are happy to share them with others, not only on our website but also in this e-book format. We believe that these studies can help many Christians come to a better understanding of how the Old Testament is relevant to Christians today.May God bless you as you read and study.