12. What is Apostolic Tradition?
Apostolic Tradition is the transmission of the message of Christ, brought about from the very beginnings of Christianity by means of preaching, bearing witness, institutions, worship, and inspired writings. The apostles transmitted all they received from Christ and learned from the Holy Spirit to their successors, the bishops, and through them to all generations until the end of the world.
Further reading: CCC 75-79, 83, 96-9813. In what ways does Apostolic Tradition occur?
Apostolic Tradition occurs in two ways: through the living transmission of the word of God (also simply called Tradition) and through Sacred Scripture which is the same proclamation of salvation in written form.
Further reading: CCC 76