In this first chapter, I intend to present synthetically how the Social Doctrine of the Church has taken shape in the recent Papal Magisterium and in the Second Vatican Council, in order to demonstrate its dynamic character. Indeed, in each era the res novae require that this teaching address historical questions in the light of revealed Truth. In this regard, artificial intelligence, too, should not be considered as merely yet another theme to be studied or a crisis to be managed, but rather as a development that challenges the categories of Social Doctrine from within, calling for their further development in fidelity to the Gospel.
This overview, however, would not be very comprehensible if, before reflecting on the contribution of individual popes and their most relevant documents, we do not first clarify some fundamental principles concerning the way in which the Church exists in history and relates to the world. Failing to do so would expose Social Doctrine to the risk of being perceived as an undue interference in “worldly” matters or as an external code of ethics imposed from above. In reality, it stems from a Church that walks alongside humanity, recognizing the autonomy of earthly realities and the distinction between ecclesial and political communities. Indeed, it is for this very reason that she strives to serve the common good. A Church journeying through human history
The Church is present in the world as a sign of unity for the entire human family. She recognizes today’s questions and challenges as the current setting in which to carry out her particular vocation of listening, dialogue and service, and of being responsive to everything concerning the lives of contemporary men and women. This involvement in people’s lives helps the Church understand ever more clearly that her mission has a historical scope and entails a responsibility for the way in which social relations are built. For this reason, she cannot consider herself a stranger to the forces shaping society. On the contrary, the Church actively participates in the processes by which society grows and is organized, and she offers her own contribution to the creation of a more just and fraternal society. Pope Francis emphasized this historical dimension of the Church’s mission: “No one can demand that religion should be relegated to the inner sanctum of personal life, without influence on societal and national life, without concern for the soundness of civil institutions, without a right to offer an opinion on events affecting society.” 9Francis, Apostolic Exhortation Evangelii Gaudium (24 November 2013), 183: AAS 105 (2013), 1097.
The Church’s vocation and duty to accompany humanity in the specifics of history leads her to recognize that earthly realities possess their own proper character and order. The Second Vatican Council expressed this principle with particular precision in the Pastoral Constitution Gaudium et Spes, whose sixtieth anniversary we remembered and celebrated with gratitude on 7 December 2025: “If by the autonomy of earthly affairs is meant that created things and societies themselves enjoy their own laws and values… then the demand for autonomy is perfectly in order.” 10Second Vatican Ecumenical Council, Pastoral Constitution Gaudium et Spes, 36: AAS 58 (1966), 1054; cf. Decree on the Apostolate of the Laity Apostolicam Actuositatem, 7: AAS 58 (1966), 843-844. This affirmation shows that creation bears the imprint of an original goodness that our human outlook must preserve, cultivate and bring to fulfilment. In this regard, the Church offers herself in a way that helps to interpret reality in all its depth. She supports with humble firmness the choices that promote the dignity of every person, the cohesion of communities and the good of all. The Church thus stands alongside the world without overpowering it, so that the promise of justice and peace that the Holy Spirit continues to sustain in the heart of humanity may come to fruition in every human endeavor.
Recognizing that God upholds the freedom of men and women in the unfolding of history, the Second Vatican Council affirmed the distinction between the ecclesial community and the political community, emphasizing that each must operate with full autonomy. The Church’s presence in the world is also expressed through her relationship with civil society and public institutions. By engaging with these entities, the Church acknowledges the value of social and political realities and honors their specific responsibilities, supporting everything that fosters the wellbeing of individuals and strengthens the fabric of society. The Church does not claim to assume the functions belonging to the State. On the contrary, she esteems those who serve the common good, and she firmly acknowledges the responsibility that civil institutions hold within society. At the same time, the mission entrusted to the Church prompts her to address the real suffering of the men and women of our time. This closeness does not stem from an intent to supplant civil institutions, much less from an implicit criticism of their work. Rather, it stems from evangelical charity, which impels the Church to draw near to the wounds of humanity whenever they surface with greater severity. When the Church intervenes, she does so following the example of the Good Samaritan, with discretion and closeness, aware that what arises from urgent necessity cannot become the norm, nor replace the institutional responsibilities proper to the civil community.
Starting from this twofold acknowledgment — the autonomy of earthly realities and the distinction between ecclesiastical and political spheres of competence — allows for a clearer understanding of the direction that the Second Vatican Council set for the Church in her relationship with the world. Gaudium et Spes reminds us that “it is the task of the whole People of God, particularly of its pastors and theologians, to listen to and distinguish the many voices of our times and to interpret them in the light of God’s word, in order that the revealed Truth may be more deeply penetrated, better understood and more suitably presented.” 11Second Vatican Ecumenical Council, Pastoral Constitution Gaudium et Spes, 44: AAS 58 (1966), 1065. Listening to the “many voices” is no mere sociological exercise, but instead requires spiritual discernment. Guided by the Spirit, the People of God come to recognize in cultural and social transformations both the signs of the presence of Christ, who comes and guides history toward its fulfilment, and those aberrations that obscure his face. In this way, the essential core of revealed Truth is not altered, but made explicit and adopted as a living standard for guiding concrete choices, inspiring paths of personal and communal conversion, promoting structural reforms and supporting new forms of evangelical witness in public life. History is thus understood as one of the places in which the Church allows herself to be taught by the Spirit about the humanizing power of the Gospel; and she learns to develop her own teaching at the service of the dignity of every person and the good of all peoples. The wisdom of the word of God in dialogue with the human sciences
The Church regards all who sincerely seek “truth, goodness and beauty” as companions on the journey, and considers them as “precious allies” 12Francis, Apostolic Exhortation Evangelii Gaudium (24 November 2013), 257; AAS 105 (2013), 1123. in defending the dignity of every person and in caring for creation. Adopting the pastoral approach of the Second Vatican Council, which invites us to listen, discern and interpret the signs of the times, and enlightened by the wisdom of the word, the Church is not afraid to encounter human knowledge. Indeed, the word of God provides reliable standards for establishing paths of justice and opening ways of reconciliation and peace among peoples. When it comes to applying these standards to the complex situations of our time, the contributions of philosophy and of the human and social sciences is essential. These disciplines help us understand and analyze cultural, economic and political dynamics more deeply. Saint John Paul II recalled that the Church welcomes the contributions of the social sciences in order “to draw from them concrete insights that help her carry out her magisterial office.” 13Saint John Paul II, Apostolic Letter issued “Motu Proprio” Socialium Scientiarum (1 January 1994): AAS 86 (1994), 209. A dialogue with such kinds of knowledge does not diminish the power of the Gospel. On the contrary, it makes it possible to identify with greater clarity what genuinely fosters the lives of individuals and communities. Following this perspective, Pope Francis emphasized that when dealing with many specific questions, the Church does not claim to offer “a definitive opinion,” 14Francis, Encyclical Letter Laudato Si ’ (24 May 2015), 61: AAS 107 (2015), 871. but recognizes the importance of listening to scientific research and of encouraging a serious and honest debate among experts while welcoming a diversity of opinions.
Nourished by this fruitful dialogue between the Gospel and human knowledge, the Church has progressively developed her Social Doctrine, cultivating in history a wise patrimony marked by theological and anthropological coherence rooted in the Christian understanding of the person. Precisely because this patrimony arises from faith and a corresponding vision of reality, it does not amount to a repertoire of technical solutions or an economic or political model to be set against others. Instead, it belongs to a different order, 15Cf. Saint John Paul II, Encyclical Letter Sollicitudo Rei Socialis (30 December 1987), 41: AAS 80 (1988), 570-572. namely that of the principles that guide the interpretation of events and sustain an evangelical understanding of historical processes and the choices these entail. Herein lies the proper function of Social Doctrine, which does not claim to supplant the responsibilities of politics or institutions, but offers itself as a foundation for collective discernment, helping to recognize and promote whatever serves the dignity of persons, the vitality of communities and the common good.