Sunday is the ‘eighth day,’ the day following the Sabbath, and signifies the new creation that began with Christ’s resurrection.
Sunday is a day of rest. If asked about its origin, many people would likely answer, “Because God created the world and rested on the seventh day.” However, the day that commemorates this “seventh day”—the Sabbath—is Saturday, not Sunday.
As you well know, the third commandment of the Ten Commandments is “Remember the Sabbath day, to keep it holy.” Yet, if we look at the Bible, the Ten Commandments state, “Remember the Sabbath day, to keep it holy” (Exodus 20:8). The Bible tells us to keep the “Sabbath,” so why are we keeping “Sunday”?
The Sabbath is a day to praise God and to remember God’s work of creation. There is another reason why the Sabbath was established. The Bible tells us, “Remember that you were a slave in the land of Egypt, and that the Lord your God brought you out of there with a mighty hand and an outstretched arm. This is why the Lord your God commands you to observe the Sabbath” (Deuteronomy 5:15). The Sabbath is, in fact, a holy day that commemorates “God’s salvation”.
Some of you may be thinking of “Passover.” That is correct. Just as Jesus, as the “Lamb of God,” became the sacrificial offering and fulfilled the Passover through the Eucharist, so too was the Sabbath fulfilled through Jesus.
In fact, the Sabbath was used as a pretext by those who opposed Jesus to attack Him. This was because the miracles Jesus performed and the activities of His disciples were seen as violating the Sabbath regulations. To such people, Jesus taught, “The Sabbath was made for man, not man for the Sabbath” (Mark 2:27), thereby proclaiming that Jesus, the “Son of Man,” is the “Lord of the Sabbath.”
The Bible records that this event—in which Jesus, the Lord of the Sabbath, conquered death through His resurrection and saved us from sin—took place “as the Sabbath was ending and the first day of the week was dawning” (Matthew 28:1). The Church teaches that “the day following the Sabbath, the ‘eighth day,’ signifies the new creation that began with Christ’s Resurrection,” and that “for Christians, this day has become the first of all days, the first of all feasts, the Lord’s Day, and Sunday” (Catechism of the Catholic Church, 2174).
The Sabbath has been replaced by Sunday, which reminds us of the new creation that began with Jesus’ resurrection. Therefore, from the early Church onward, believers have kept Sunday holy rather than the Sabbath. This is why the Sabbath of the Ten Commandments was replaced by Sunday.
St. Ignatius of Antioch, a Church Father of the early Church, states, “Those who lived according to the old order have now gained a new hope; they no longer observe the Sabbath but live by observing the Lord’s Day,” adding, “Through the Lord and His death, our life has sprung forth on this day.”
Sunday is the Lord’s Day, the day Jesus rose from the dead. On this day of new creation, how are you being reborn?