When the Apostles were alive 27 books of the Bible were not written and Tradition (whatever this means) had not been established.
It’s interesting that you express ambiguity over the meaning of Tradition but go on to make a definitive statement about it. Unfortunately your statement is incorrect. The very fact that the Apostles designated successors, and gave them their own teaching authority to preserve and spread the Gospel message, is Sacred Tradition in action.
As taught in the Catechism of the Catholic Church:
I. THE APOSTOLIC TRADITION
In the apostolic preaching. . .
76 In keeping with the Lord’s command, the Gospel was handed on in two ways:
- *orally *“by the apostles who handed on, by the spoken word of their preaching, by the example they gave, by the institutions they established, what they themselves had received - whether from the lips of Christ, from his way of life and his works, or whether they had learned it at the prompting of the Holy Spirit”;
- in writing “by those apostles and other men associated with the apostles who, under the inspiration of the same Holy Spirit, committed the message of salvation to writing”.
. . . continued in apostolic succession
**77 **“In order that the full and living Gospel might always be preserved in the Church the apostles left bishops as their successors. They gave them their own position of teaching authority.” Indeed, “the apostolic preaching, which is expressed in a special way in the inspired books, was to be preserved in a continuous line of succession until the end of time.”
**78 **This living transmission, accomplished in the Holy Spirit, is called
Tradition, since it is distinct from Sacred Scripture, though closely connected to it. Through Tradition, “the Church, in her doctrine, life and worship, perpetuates and transmits to every generation all that she herself is, all that she believes.” “The sayings of the holy Fathers are a witness to the life-giving presence of this Tradition, showing how its riches are poured out in the practice and life of the Church, in her belief and her prayer.”
II. THE RELATIONSHIP BETWEEN TRADITION AND SACRED SCRIPTURE
One common source. . .
**80 **“Sacred Tradition and Sacred Scripture, then, are bound closely together, and communicate one with the other. For both of them, flowing out from the same divine well-spring, come together in some fashion to form one thing, and move towards the same goal.” Each of them makes present and fruitful in the Church the mystery of Christ, who promised to remain with his own “always, to the close of the age”.
. . . two distinct modes of transmission
**81 **“
Sacred Scripture is the speech of God as it is put down in writing under the breath of the Holy Spirit.”
“And **[Holy] **
Tradition transmits in its entirety the Word of God which has been entrusted to the apostles by Christ the Lord and the Holy Spirit.
It transmits it to the successors of the apostles so that, enlightened by the Spirit of truth, they may faithfully preserve, expound and spread it abroad by their preaching.”
82 As a result the Church, to whom the transmission and interpretation of Revelation is entrusted, “does not derive her certainty about all revealed truths from the holy Scriptures alone. Both Scripture and Tradition must be accepted and honored with equal sentiments of devotion and reverence.”
Apostolic Tradition and ecclesial traditions
83** The Tradition here in question comes from the apostles** and hands on what they received from Jesus’ teaching and example and what they learned from the Holy Spirit. The first generation of Christians did not yet have a written New Testament, and the New Testament itself demonstrates the process of living Tradition.
Sacred Tradition (singular) as a means of transmission of the Word of God (see 81 above) is not to be confused with ordinary Church traditions:
83*(cont.) *Tradition is to be distinguished from the various theological, disciplinary, liturgical or devotional traditions (plural), born in the local churches over time. These are the particular forms, adapted to different places and times, in which the great Tradition is expressed. In the light of Tradition, these traditions can be retained, modified or even abandoned under the guidance of the Church’s Magisterium.