The Sabbatical principle is grounded in creation and integral to the abiding moral Law (Exodus 20:8-11). This day of rest was given to man for rejuvenation and worship (Exodus 23:12 & Deuteronomy 5:14), not for man to impose mountains of legalistic restrictions. Thus in these verses, Jesus explains that as Master of the Sabbath, He alone is the Mediator of these Laws…not man.