We recommend this book for further reading.
There is such a thing as “the Jewish Sabbath,” or the Sabbath of the Jews, but it is a far different thing from the Sabbath of the Lord. Many people imagine that if one observes the seventh day he is keeping the Jewish Sabbath; but that does not at all follow. There is the same difference between the Jewish Sabbath and the Sabbath of the Lord, that there is between a man and God. The seventh day is “the Sabbath of the Lord.” A man may cease from physical toil on the seventh day of the week, and not keep the Sabbath of the Lord.
How is this possible? The key is finding rest in the Lord of the Sabbath Himself.