While Judaism does not have an equivalent to the secular Mother’s Day, Reform Judaism has been at the forefront of including women in religious life as equal partners.
Both The Torah: A Modern Commentary 1 and The Torah: A Women's Commentary 2 offer the following midrash for this week's portion pertaining to the sacrifice of the sh'lamim given as an offering of thanksgiving: Though all sacrifices may be discontinued in the future (for in the messianic age humankind