From Pope St. John Paul II’s Apostolic Exhortation Familiaris Consortio (1981):
As a sharer in the life and mission of the Church, which listens to the word of God with reverence and proclaims it confidently,120 the Christian family fulfills its prophetic role by welcoming and announcing the word of God: it thus becomes more and more each day a believing and evangelizing community.
Christian spouses and parents are required to offer “the obedience of faith.”121 They are called upon to welcome the word of the Lord which reveals to them the marvelous news—the Good News—of their conjugal and family life sanctified and made a source of sanctity by Christ Himself. Only in faith can they discover and admire with joyful gratitude the dignity to which God has deigned to raise marriage and the family, making them a sign and meeting place of the loving covenant between God and man, between Jesus Christ and His bride, the Church.
The very preparation for Christian marriage is itself a journey of faith. It is a special opportunity for the engaged to rediscover and deepen the faith received in Baptism and nourished by their Christian upbringing. In this way they come to recognize and freely accept their vocation to follow Christ and to serve the Kingdom of God in the married state.
The celebration of the sacrament of marriage is the basic moment of the faith of the couple. This sacrament, in essence, is the proclamation in the Church of the Good News concerning married love. It is the word of God that “reveals” and “fulfills” the wise and loving plan of God for the married couple, giving them a mysterious and real share in the very love with which God Himself loves humanity. Since the sacramental celebration of marriage is itself a proclamation of the word of God, it must also be a “profession of faith” within and with the Church, as a community of believers, on the part of all those who in different ways participate in its celebration.
This profession of faith demands that it be prolonged in the life of the married couple and of the family. God, who called the couple to marriage, continues to call them in marriage.122 In and through the events, problems, difficulties and circumstances of everyday life, God comes to them, revealing and presenting the concrete “demands” of their sharing in the love of Christ for His Church in the particular family, social and ecclesial situation in which they find themselves.
The discovery of and obedience to the plan of God on the part of the conjugal and family community must take place in “togetherness,” through the human experience of love between husband and wife, between parents and children, lived in the Spirit of Christ.
Thus the little domestic Church, like the greater Church, needs to be constantly and intensely evangelized: hence its duty regarding permanent education in the faith.
120 Second Vatican Council Dei Verbum, 1.
121 Cf. Rom 16:26.
122 Cf. Paul VI, Humanæ vitæ, 25: Acta Apostolicæ Sedis 60 (1968), 498.
— Familiaris Consortio 51