A brief history of liturgical reform in the Church
By John Mecklenborg
Every Sunday, Catholics are obligated to commemorate the resurrection of Jesus Christ through celebration of the sacred Mass.
It’s a time of communal worship, celebration, rest, reflection, prayer, Word, and unity around the eucharistic table. Precisely how Catholics participate in that obligation has taken many forms and has been a liturgical conversation for centuries.
While the purpose of liturgy is clear—the sacramental re-presentation of Christ’s divine eucharistic sacrifice—the practice has been modified numerous times throughout the history of the Church.
The Second Vatican Council
The most impactful reform in recent times began on Dec. 4, 1963, when Pope Paul VI closed the second session of the Second Vatican Council with a series of liturgical reforms outlined in Sacrosanctum Concilium (Constitution on the Sacred Liturgy).
At the time, the need for liturgical reform met near-unanimous approval—2,147 bishops voted affirmatively and only four voted negatively—triggering the largest Catholic ecclesial renewal since the Council of Trent in 1570.
The reforms were profound, fostering active and conscious lay participation, restoring ancient elements and vernacular liturgy, and renewing the Church’s mission for a modern world.
The transformation was rapid. Ancient liturgies had been discovered in Vatican libraries, manuscripts had been retranslated, and the rites were to be “simplified, while due care is taken to preserve their substance.”By the first Sunday of Advent 1969 (Nov. 30), the updated Roman Missal was being implemented worldwide through the Missale Romanum, establishing what became known as the Novus Ordo (New Order of Mass).
The Traditional Latin Mass continues
In his 1988 motu proprio Ecclesia Dei, St. John Paul II permitted a limited use of the 1962 Missal to foster unity and bring into communion of the Church those who had left as a result of the reform.
In 2007, Pope Benedict XVI issued Summorum Pontificum, significantly expanding access to the 1962 Missal and designating it the “Extraordinary Form.” This led to growth in traditional communities, particularly among young families and converts drawn to its stability and reverence.
Recent restrictions
In 2021, Pope Francis issued Traditionis custodes, substantially reversing his predecessor’s approach. The apostolic letter placed new restrictions on use of the 1962 Missal, requiring diocesan bishops to phase out the Extraordinary Form in parish churches. Francis stated the reforms were necessary to promote unity around the post-Vatican II liturgy and prevent division within the Church.
Implementation has varied significantly across dioceses, with some bishops restricting celebrations to single locations while others have sought extensions from Rome. The Diocese of Knoxville’s liturgical approach—transitioning to a Latin Novus Ordo with traditional elements like ad orientem worship, Latin language, and sacred music—represents one attempt to balance papal direction with pastoral sensitivity to communities formed around the older liturgy.