Komentarz do Powtórzonego Prawa 4:6

ושמרתם AND YE SHALL BE ON THE WATCH [TO DO] — This refers to the study of the laws (Sifrei Devarim 58),

כי היא חכמתכם, observance of the laws of the Torah is your true wisdom and will enable you to resist the lures and challenges by the heretics.

ושמרתם ועשיתם כי היא חכמתכם ובינתכם לעיני העמים, “observe them for in the eyes of the nations this group of laws represents your wisdom and your insight.” Moses points out that apart from the internal value of the laws of the Torah, they have an “external” value, if performed; the success of a Torah observant Jewish nation is credited to our wisdom, which in turn is credited by the nations to these laws, observance of which is perceived as the key to the success of the Jewish nation. An additional benefit accruing to the people for observing the Torah’s laws is that the Shechinah, Hashem’s benevolent presence, will be hovering over us, always close at hand when we need to call upon Him for any legitimate reason.