In his 1998 lecture on Exodus 30, Dennis Prager says: The Greeks thought the Jews were lazy because of their Sabbath observance.
The Sabbath was the most appealing part of Judaism in the Roman Empire.
The Jews weren’t the first people to say be nice. What distinguished the Jews was the Sabbath.
When a Jew keeps the Sabbath, it is an announcement that God created the world.
When I have raised the question why is there so little Sabbath observance in Christian life, one response I’ve got is that this commandment is the only one of the Ten not reiterated in the New Testament.