From Pope St. John Paul II’s Apostolic Exhortation Familiaris Consortio (1981):
Illuminated by the faith that gives her an understanding of all the truth concerning the great value of marriage and the family and their deepest meaning, the Church once again feels the pressing need to proclaim the Gospel, that is the “good news,” to all people without exception, in particular to all those who are called to marriage and are preparing for it, to all married couples and parents in the world.
The Church is deeply convinced that only by the acceptance of the Gospel are the hopes that man legitimately places in marriage and in the family capable of being fulfilled.
Willed by God in the very act of creation,3 marriage and the family are interiorly ordained to fulfillment in Christ4 and have need of His graces in order to be healed from the wounds of sin5 and restored to their “beginning,”6 that is, to full understanding and the full realization of God’s plan.
At a moment of history in which the family is the object of numerous forces that seek to destroy it or in some way to deform it, and aware that the well-being of society and her own good are intimately tied to the good of the family,7 the Church perceives in a more urgent and compelling way her mission of proclaiming to all people the plan of God for marriage and the family, ensuring their full vitality and human and Christian development, and thus contributing to the renewal of society and of the People of God.
3 Cf. Gen 1-2.
4 Cf. Eph 5.
5 Cf. Second Vatican Ecumenical Council, Pastoral Constitution on the Church in the Modern World Gaudium et spes, 47; John Paul II, Letter Appropinquat iam, 1 (August 15, 1980): Acta Apostolicæ Sedis 72 (1980), 791.
6 Cf. Mt 19: 4.
7 Cf. Second Vatican Ecumenical Council, Pastoral Constitution on the Church in the Modern World Gaudium et spes, 47.
— Familiaris Consortio 3