Some groups today, such as the Seventh-day Adventists, teach that keeping the seventh-day Sabbath is a perpetual moral law meant for all people, and that not keeping it is a sign of apostasy and disloyalty to God. They base their belief on Genesis 2:1–3, which tells of God resting after His creative work and then sanctifying the Sabbath day, and on the fourth commandment. They also argue that the New Testament teaches the continuity of seventh-day Sabbath observance by Christ’s followers, even after Christ’s death. These beliefs, however, are misguided. There is no universal moral obligation given in Genesis 2...