Sunday, the first day of the week, is a new liturgical institution that draws on the Old Testament liturgical traditions of the Sabbath, Passover, and the Feast of Firstfruits. What does Sunday mean? That's the question which Jack Franicevich answers in this new addition to the Theopolis Explorations series. In Sunday: Keeping Christian Time, Franicevich studies the meaning of history and holidays and timekeeping in Scripture to stress the gift of rest embodied in the Lord's Day, considering not only the Old Testament feasts but the way in which Luke frame the story of the new covenant.