And hallow my sabbaths,.... Or keep them holy, by abstaining from worldly business on them; by observing all the duties of religion, private and public, to be performed on such days:
and they shall be a sign between me and you; of present and future good; Ezekiel 20:12;
that ye may know that I [am] the Lord your God; not only acknowledge him to be the Lord their God, by observing his laws, and sanctifying his sabbaths; but also have a larger experience of his grace and goodness, as their covenant God.