In the years following Jesus’ resurrection, the Early Church began gathering to rejoice and worship on the day after Saturday’s Sabbath. This was to celebrate Jesus rising on the first day of the week, a Sunday (see Matt 28:1; Mark 16:1; Luke 24:1; and John 20:1).
After the sabbath, as the first day of the week was dawning, Mary Magdalene and the other Mary went to see the tomb.
— Matthew 28:1 NRSV
At first, the newly named Lord’s Day didn’t seek to replace observing the Sabbath, however, it happened anyway. Sundays slowly took on more and more Sabbath characteristics and eventually became a day of rest for Christians to hear the preaching of Scripture.
Gradually, Saturdays became an afterthought in Christian practice, and then in our beliefs, too. Nowadays, most Christians probably consider the Sabbath to be synonymous with Sundays.
But Saturdays and Sundays are not the same.
Which is hilarious when I phrase it that way. Of course, they're not.
What I mean is Saturdays and Sundays are different days of the theological week. By treating them the same, we miss the vastly different truths they each communicate.
