The Second Vatican Council, in its Pastoral Constitution Gaudium et Spes, was concerned “to promote the dignity of marriage and the family (cf. Nos. 47-52)”. The Constitution “defined marriage as a community of life and love (cf. 48), placing love at the centre of the family… ‘True love between husband and wife’ (49) involves mutual self-giving, includes and integrates the sexual and affective dimensions, in accordance with God’s plan (cf. 48-49)”. The conciliar document also emphasizes “the grounding of the spouses in Christ. Christ the Lord ‘makes himself present to the Christian spouses in the sacrament of marriage’ (48) and remains with them. In the incarnation, he assumes human love, purifies it and brings it to fulfilment. By his Spirit, he gives spouses the capacity to live that love, permeating every part of their lives of faith, hope and charity. In this way, the spouses are consecrated and by means of a special grace build up the Body of Christ and form a domestic church (cf. Lumen Gentium, 11), so that the Church, in order fully to understand her mystery, looks to the Christian family, which manifests her in a real way”.59
“Blessed Paul VI, in the wake of the Second Vatican Council, further developed the Church’s teaching on marriage and the family. In a particular way, with the Encyclical Humanae Vitae he brought out the intrinsic bond between conjugal love and the generation of life: ‘Married love requires of husband and wife the full awareness of their obligations in the matter of responsible parenthood, which today, rightly enough, is much insisted upon, but which at the same time must be rightly understood… The exercise of responsible parenthood requires that husband and wife, keeping a right order of priorities, recognize their own duties towards God, themselves, their families and human society’ (No. 10). In the Apostolic Exhortation Evangelii Nuntiandi, Paul VI highlighted the relationship between the family and the Church”.60
“Saint John Paul II devoted special attention to the family in his catecheses on human love, in his Letter to Families Gratissimam Sane and particularly in his Apostolic Exhortation Familiaris Consortio. In these documents, the Pope defined the family as ‘the way of the Church’. He also offered a general vision of the vocation of men and women to love, and proposed basic guidelines for the pastoral care of the family and for the role of the family in society. In particular, by treating conjugal love (cf. No. 13), he described how spouses, in their mutual love, receive the gift of the Spirit of Christ and live their call to holiness”.61
“Pope Benedict XVI, in his Encyclical Deus Caritas Est, returned to the topic of the truth of the love of man and woman, which is fully illuminated only in the love of the crucified Christ (cf. No. 2). He stressed that ‘marriage based on an exclusive and definitive love becomes an icon of the relationship between God and his people, and vice versa. God’s way of loving becomes the measure of human love’ (11). Moreover, in the Encyclical Caritas in Veritate, he highlighted the importance of love as a principle of life in society (cf. 44), a place where we learn the experience of the common good”.62