In the words of Rabbi Shalom Arush [author of "Garden of Emunah"]
"גן האמונה העולמי" (page 416) :
"The Nations of the World have a portion of Shabbat as it says in Is...'it is a mitzvah for each non-Jew to receive Shabbat , for Shabbat is universal to all of Mankind....Everyone needs to Remember the Shabbat, and the day of relaxation is the 7th Day'....'Remember the Day of Shabbat to Sanctify it' - is incumbent for all the Nations."
