Theology · Scripture, Tradition and the Magisterium

What Is Sacred Tradition, and Isn't It Just Human Tradition?

An Old Objection

When Catholics speak of Sacred Tradition, many Protestant Christians grow uneasy. Did Jesus not criticise the Pharisees for “making void the word of God through your tradition” (Mark 7:13)? Isn’t Tradition just a way of adding human inventions to the Gospel?

The objection is fair, and it deserves a careful answer. The Catholic Church agrees that human traditions can obscure God’s word. But she distinguishes these from Sacred Tradition, which is not something added to the Gospel but the living transmission of the Gospel itself.

The Gospel Came First as Preaching

Start with a historical fact. The Church existed before the New Testament was written.

Jesus did not write a book. He preached, and He sent His apostles to preach: “Go therefore and make disciples of all nations, baptising them… teaching them to observe all that I have commanded you” (Matthew 28:19–20). For years, the Gospel was passed on by word of mouth, by worship, by example and by the way the communities lived.

Only gradually did some apostles and their companions write things down. Those writings became the New Testament. But they never claimed to contain everything. St John ends his Gospel by saying that if everything Jesus did were written, “the world itself could not contain the books” (John 21:25).

What the New Testament Says About Tradition

The New Testament itself speaks positively of tradition, using the Greek word paradosis, “what is handed on.”

St Paul writes: “Stand firm and hold to the traditions which you were taught by us, either by word of mouth or by letter” (2 Thessalonians 2:15). He praises the Corinthians “because you… maintain the traditions even as I have delivered them to you” (1 Corinthians 11:2). He tells Timothy: “what you have heard from me before many witnesses entrust to faithful men who will be able to teach others also” (2 Timothy 2:2).

So the New Testament distinguishes between two things: human traditions that contradict God’s word, which Jesus condemned, and the apostolic tradition, which Paul commanded Christians to keep.

Tradition and Traditions

The Catechism makes the same distinction. Sacred Tradition (with a capital T) comes from the apostles and hands on what they received from Christ’s teaching and example and from the Holy Spirit. It must be distinguished from the various traditions, theological, disciplinary, liturgical or devotional, which arose in local churches over time. These can be kept, changed or abandoned under the guidance of the Church (CCC 83).

For example, priestly celibacy in the Latin Church, the date of a feast, or the colour of vestments are traditions with a small t. They can change. The faith that Christ is truly present in the Eucharist, or the practice of baptising infants, belongs to Sacred Tradition. It cannot.

One Source, Two Streams

The Second Vatican Council, in Dei Verbum (1965), described the relationship between Scripture and Tradition carefully.

Both flow “from the same divine wellspring,” merge into a unity and tend toward the same end (Dei Verbum 9). Scripture is the Word of God put down in writing under the inspiration of the Holy Spirit. Tradition hands on that same Word of God, entrusted by Christ and the Spirit to the apostles, to their successors.

Together they form “a single sacred deposit of the Word of God” (Dei Verbum 10). They are not two competing sources, one adding to the other. They are two ways in which the one revelation reaches us.

The Fathers on Tradition

The early Church was clear about the importance of Tradition.

Around 180, St Irenaeus of Lyons argued against the Gnostics, who claimed secret teachings. He pointed to the public tradition of the apostles, preserved in the churches they founded and guaranteed by the unbroken succession of their bishops. Anyone who wants to know the truth, he wrote, can look at the tradition of the apostles manifested throughout the world.

In the fourth century, St Basil the Great listed practices received from the apostles by unwritten tradition: making the sign of the cross, praying towards the east, the words of the Eucharistic prayer, the blessing of baptismal water. Without these, he said, we would damage the Gospel itself.

In the fifth century, St Vincent of Lérins gave a famous test of authentic tradition: what has been believed “everywhere, always, and by all.”

Examples of Tradition at Work

Several things that almost all Christians accept are known through Tradition rather than stated in Scripture:

The canon of Scripture, the list of which books belong in the Bible.
Sunday worship instead of the Sabbath.
Infant baptism, practised by most Christian traditions.
The precise doctrine of the Trinity, formulated at the councils of Nicaea and Constantinople.

In each case, Scripture contains the seeds, but the Church’s living Tradition recognised and articulated them.

The Role of the Magisterium

Who decides what belongs to Sacred Tradition? Christ entrusted the task of interpreting the Word of God, written or handed on, to the living teaching office of the Church: the Magisterium, the Pope and the bishops in communion with him (Dei Verbum 10; CCC 85).

The Council added a crucial qualification. “This Magisterium is not above the Word of God, but serves it” (Dei Verbum 10; CCC 86). The Magisterium cannot invent new revelation. It listens to the Word, guards it, and explains it faithfully.

A Living Tradition

Tradition is not a dead weight from the past. It is living, because the Holy Spirit is alive in the Church. Through Tradition, the Church “perpetuates and transmits to every generation all that she herself is, all that she believes” (Dei Verbum 8; CCC 78).

This is why Catholic doctrine can develop without changing. As St John Henry Newman argued, a living idea grows like a seed into a tree, unfolding what was present from the start.

Scripture, Tradition and the Magisterium work together like a three-legged stool. Remove any one, and the whole thing falls.