Since Christianity teaches that for God there is no male and female, how could the Church prohibit, on the ground of a non-existent difference, especially same-sex marriages? Or why would the Church prohibit them on the ground of child-bearing, when faith does not exist for child-bearing? Or why would the Church prohibit them on the ground of the mental health of children, when the majority of heterosexual couples hardly even keep their marriage?
The whole conversation on this issue has to overcome the logic of what is a personal ‘right’ to do, to overcome even marriage as absolute value, such as it tends to become, that is, to recognize that marriage is temporal, and is right and fair only to the degree that is widened and flows into the Church.
To overcome sexual discrimination is not to allow the marriage of anyone with anyone, but to surrender to holiness, when sexes don’t matter at all, because everywhere there are brothers, and marriage is the Church, the union and deification of men. St Maximus Confessor says about this condition: “the body was deified with the soul in the participation of the deification that befits it, so that only God is revealed in the soul and in the body, because their natural characteristics are changed by the excess of glory” (Theological chapters 2.88).