The goodness of the created order is founded on the primordial covenant in which God the Creator names something else, something other than Himself as good. This something other is His creation constructed according to the beauty of covenantal differentiation. The primary symbols of this covenant are the male and female person. Salvation does not annihilate the self, thus it does not annihilate sexual difference, but according to the faith of the Church, the order of redemption rests upon the bodily symbols of man and woman. The manner in which these symbols function redemptively in the order of grace is the basis for male and female authority in the Catholic church.
---Monica Migliorino Miller, Sexuality and Authority in the Catholic Church