Throughout the history of the church, Christians have worshiped on Sunday. But the church has not always understood the significance of this day in the same way. Certainly today, many do not view it as significant at all. Things haven’t always been this way. In this lesson, Dr. Godfrey surveys the recent landscape of the church concerning Sunday and begins to explain how the early church through the Middle Ages understood it in relation to the Sabbath and to the fourth commandment.