The Catholic Church bases all of its teachings on Sacred Tradition and Sacred Scripture (The Bible). The teaching authority of the Roman Catholic Church, called the Magisterium, teaches only from Tradition and Scripture. And both are believed to be entirely infallible in all that they teach on matters of faith and morals. The Roman Catholic Church (also known as the Catholic Church) is that Christian Church which is led by the Pope, the Bishop of Rome, currently Pope Benedict XVI. The Roman Catholic Church teaches that it is the one holy catholic and apostolic Church founded by Jesus Christ. ... ...

The Second Vatican Council taught on Tradition, Scripture, and Magisterium in Dei Verbum, n. 10: The Second Ecumenical Council of the Vatican, or Vatican II, was an Ecumenical Council of the Catholic Church opened under Pope John XXIII in 1962 and closed under Pope Paul VI in 1965. ... Dei Verbum, the Dogmatic Constitution on Divine Revelation, is one of the principal documents of the Second Vatican Council, indeed their very foundation in the view of one of the leading Council Fathers, Bishop Christopher Butler. ...

Sacred tradition and Sacred Scripture form one sacred deposit of the word of God, committed to the Church. Holding fast to this deposit the entire holy people united with their shepherds remain always steadfast in the teaching of the Apostles, in the common life, in the breaking of the bread and in prayers (see Acts 2, 42, Greek text), so that holding to, practicing and professing the heritage of the faith, it becomes on the part of the bishops and faithful a single common effort.

But the task of authentically interpreting the word of God, whether written or handed on, has been entrusted exclusively to the living teaching office of the Church, whose authority is exercised in the name of Jesus Christ. This teaching office is not above the word of God, but serves it, teaching only what has been handed on, listening to it devoutly, guarding it scrupulously and explaining it faithfully in accord with a divine commission and with the help of the Holy Spirit, it draws from this one deposit of faith everything which it presents for belief as divinely revealed.

It is clear, therefore, that sacred tradition, Sacred Scripture and the teaching authority of the Church, in accord with God's most wise design, are so linked and joined together that one cannot stand without the others, and that all together and each in its own way under the action of the one Holy Spirit contribute effectively to the salvation of souls.

Thus, all of the teachings of the Roman Catholic Church come from either Tradition or Scripture, or from the Magisterium interpreting Tradition and Scripture. These two sources, Tradition and Scripture, are viewed and treated as one source of Divine Revelation, which includes both the deeds of God and the words of God:

This plan of revelation is realized by deeds and words having in inner unity: the deeds wrought by God in the history of salvation manifest and confirm the teaching and realities signified by the words, while the words proclaim the deeds and clarify the mystery contained in them. (Dei Verbum, n. 2)

Dei Verbum, the Dogmatic Constitution on Divine Revelation, is one of the principal documents of the Second Vatican Council, indeed their very foundation in the view of one of the leading Council Fathers, Bishop Christopher Butler. ...

The Transmission of Tradition

The word 'tradition' is taken from the Latin 'trado, tradere' meaning to hand over, to deliver, or to bequeth. The teachings of Scripture are written down in the Bible, and are handed on, not only in writing, but also in the lives of those who live according to its teachings. The teachings of Tradition are not written down, but are lived and are handed on by the lives of those who lived according to its teachings, according to the example of Christ and the Apostles (1 Corinthians 11:2, 2 Thessalonians 2:15). This perpetual handing on of the teachings of Tradition is called a living Tradition; it is the transmission of the teachings of Tradition from one generation to the next.

The Magisterium has a role in deciding authoritatively which truths are a part of Sacred Tradition. However, the main means of transmission of the teachings of Tradition is the lives of all those who live according to the Way of life handed down from the time of Christ and the Apostles. Magisterium (from the Latin magister: master) is a technical ecclesiastical term in Catholicism referring to the Pope and those Bishops who are directly under his supervision. ...