“SUNDAY, indeed, is the day on which we hold our common assembly because it is the first day on which God, transforming the darkness and matter, created the world; and our Savior Jesus Christ arose from the dead on the same day. For they crucified Him on the day before that of Saturn, and on the day after, Sunday, He appeared to His apostles and disciples, and taught them the things which we have passed on to you also for consideration.”
—St. Justin Martyr (100 – 165 AD): First Apology, 67.
“THE Lord’s Day is so called, because on that day the joy of our Lord’s resurrection is celebrated. This day the Jews did not observe, but it was declared by the Christians in honor of the Lord’s resurrection, and the celebration began from that time.”
—St. Isidore of Seville (c. 560 – 636): Etymologies, 6, 18.
