In his first encyclical letter, released this morning, Pope Francis has reiterated that marriage is a union of one man and one woman for the procreation and nurturing of children.
This lifelong pledge is possible only in the light of a greater plan for marriage, he said: “Promising love for ever is possible when we perceive a plan bigger than our own ideas and undertakings, a plan which sustains us and enables us to surrender our future entirely to the one we love.” Details here