זוהר שמות — דף מ ע”ב

The bread of affliction (lechem oni) alludes to the defect of the moon not yet repaired. Circumcision was only established in the Land of Israel, where the Shekhinah resides fully. The tenth of Nissan evokes the future Yom Kippur when all will be rectified. Three sacred bonds unite Israel: the covenant of Jethro, the Torah, and Shabbat.