Church Hierarchy and the Second Vatican Council

A Church with different responsibilities

The Catholic Church is a worldwide community with a hierarchy: a structure of different levels of authority and responsibility. Its leaders teach the faith, guide worship and care for the Church’s communities. This organisation supports the Church’s mission to make God’s Kingdom present through Christian life and service.

Catholics understand this leadership as rooted in Jesus and the apostles. The Pope is the successor of St Peter, whom Jesus gave a particular responsibility for the Church. In Matthew 16:18–19, Jesus tells Peter, “on this rock I will build my church” and promises him “the keys to the kingdom of heaven”. Catholics interpret this as a foundation for the Pope’s authority. Bishops are understood as successors of the apostles.

From the worldwide Church to the local parish

The different roles connect the worldwide Church with its local communities:

A diocese contains parish communities. This means that a Catholic’s local parish is part of a wider community led by a bishop, who is united with the Pope and other bishops.

These roles should not be understood simply as a ladder of personal importance. Different responsibilities serve the whole Church. Lay people are not ordained, but their contribution to parish life and the Church’s mission is essential.

Authority includes consultation

The Pope has supreme authority, but Catholic leadership also involves consultation: listening to others and discussing questions before reaching decisions. Bishops bring knowledge of the needs of their local Churches, while theological experts can help clarify teachings.

An ecumenical council is a formal gathering of bishops from across the Catholic Church with the Pope to consider matters affecting the whole Church. Here, “ecumenical” means worldwide; it does not mean that all Christian denominations have equal decision-making authority at the council.

The bishops act together with the Pope, not independently of him. This shared responsibility is often called collegiality. Lumen Gentium explains that the body of bishops has no authority unless it is understood together with the Pope as its head. Consultation therefore does not replace the hierarchy: it is a way in which the hierarchy works.

Why the Second Vatican Council was called

The Second Vatican Council, often called Vatican II, met in Rome in four sessions between 1962 and 1965. Pope John XXIII announced his intention to call it in 1959 and opened it on 11 October 1962. After his death in June 1963, Pope Paul VI continued the Council and brought it to its close on 8 December 1965.

John XXIII wanted to renew the Church’s life and help it communicate the Christian faith more effectively in the modern world. This was not intended as abandoning Catholic belief. The aim was to deepen understanding, use a merciful approach and seek greater unity, while considering how the Church should respond to contemporary life.

About 2,500 bishops participated in one or more sessions. The Council’s consultative nature was visible even before it opened: bishops and Catholic universities were asked to suggest matters for discussion. During the Council, bishops debated draft documents, proposed amendments and voted. Theological experts assisted them, and invited non-Catholic observers attended without voting.

The Council produced sixteen documents, approved and promulgated with the Pope’s authority. Four major documents, called constitutions, express its central themes.

Dei Verbum: understanding God’s revelation

Dei Verbum, meaning “The Word of God”, concerns divine revelation: how God makes himself known. It explains the importance of the Bible, Church Tradition and the Church’s teaching authority, the Magisterium.

Catholics regard the Bible as authoritative, but understanding it involves interpretation rather than treating every passage as a straightforward literal account. Church teaching and Tradition guide that interpretation. The document connects reading Scripture with the wider faith of the Church, rather than treating the Bible as isolated from it.

Lumen Gentium: the whole Church matters

Lumen Gentium, meaning “Light of the Nations”, concerns the nature and structure of the Church. It presents the Church as the Body of Christ: its members have different roles but belong to one community.

This image helps explain why leadership and shared participation belong together. The Pope and bishops retain their responsibilities, while lay people also have an active part in the Church’s life and mission. For example, parish work and service are not solely the priest’s responsibility. The document emphasises the importance of the laity rather than treating them as passive spectators.

Sacrosanctum Concilium: participating in worship

Sacrosanctum Concilium, the Constitution on the Sacred Liturgy, concerns the Church’s public worship, especially Mass. It encouraged the faithful’s fuller, active participation.

It permitted greater use of the language spoken by the congregation, rather than requiring worship to be entirely in Latin. This helped people understand and join in the words of the service. It also allowed appropriate adaptation of sacred music. The central purpose was participation in worship, not change merely for its own sake.

Gaudium et Spes: engaging with the modern world

Gaudium et Spes, meaning “Joy and Hope”, concerns the Church in the modern world. It stresses that the Church should engage with human life and its problems, rather than withdraw from society.

Its themes include family life, economic and political affairs, human dignity and peace between nations. It also recognises conscience as a way in which people encounter moral responsibility and God’s guidance. These themes connect faith with everyday decisions and public life: Christian responsibility extends beyond attending church.

Taken together, the four constitutions link God’s revelation, the Church’s identity, its worship and its mission in the world. Vatican II shows how the Catholic Church can consult widely and renew its practices while retaining its hierarchy and continuity with its faith.