Recovering the theological significance of Sunday is fundamental to rebalancing our lives. As Orthodox and Catholics, we share a theological view of Sunday and so our purpose in this statement is four-fold: to offer a caring response to what is not just a human, but also a theological question; to add a little more volume to the growing chorus of Christian voices trying to be heard in the din of our non-stop worklife; to offer brief reflections in hopes of drawing attention to the fuller expositions elsewhere; and to reinforce the ecumenical consensus by speaking as Orthodox and Catholics with one voice.
For Christians, Sunday, the Lord’s Day, is a special day consecrated to the service and worship of God. It is a unique Christian festival. It is “the day the Lord has made” (Ps. 117 (118):24). Its nature is holy and joyful. Sunday is the day on which we believe God acted decisively to liberate the world from the tyranny of sin, death, and corruption through the Holy Resurrection of Jesus.
The primacy of Sunday is affirmed by the liturgical practice of the early church. St. Justin the Martyr writing around 150 AD notes that “it is on Sunday that we assemble because Sunday is the first day, the day on which God transformed darkness and matter and created the world and the day that Jesus Christ rose from the dead (First Apology, 67).”