Guard and Remember
The observance of Shabbat is the fourth of the Ten Commandments, and so it is listed in both Exodus and Deuteronomy where the Ten Commandments are listed. One would expect to find no difference in the wording of the Ten Commandments from one Biblical Book to the next. However, the wording of the Fourth Commandment differs in two major ways. In Exodus, the Jews are commanded: “Remember (zachor) the Sabbath day” because “in six days God created the heavens and the earth and on the seventh day He rested.” In Deuteronomy, they are instructed to “Guard (shamor) the Sabbath day” because “you were a slave in Egypt, and God brought you out of there with a strong hand and an outstretched arm.” On the whole, however, the two commandments are the same--whether remembered or guarded, Shabbat is to be made holy and no creative work ( m’la’cha ) is to be done on it. Indeed, according to Jewish tradition, when God told the Jewish people the Ten Commandments, He spoke the words zachor and shamo