שַׁבַּ֨ת שַׁבָּת֥וֹן הִיא֙ לָכֶ֔ם וְעִנִּיתֶ֖ם אֶת־נַפְשֹׁתֵיכֶ֑ם חֻקַּ֖ת עוֹלָֽם׃
C’est pour vous un sabbat, un sabbat solennel, où vous devez mortifier vos personnes: loi perpétuelle.
Zohar
When Yod departs from Wav-Daleth through the sins of the world, the nakedness of all is found, on this it is written (Leviticus 18:7) "the nakedness of your father [...] you shall not reveal". And when Yod-Wav-Daleth departs from He-Aleph, on this it is written "the nakedness of your mother you shall not reveal, she is your mother, you shall not reveal her nakedness". Your mother she is for sure, (Proverbs 2:3) "because you will call Understanding (Bina) "mother" (אם) etc".