Apostolic tradition
One calls apostolic tradition the doctrines which makes go back to the Apôtre S, first disciples of Jesus-Christ, the writing or at least the inspiration of the texts which will become the New Testament, in particular Gospel S (Matthieu and Jean apostles, Marc and Luc companions respectively of Pierre and Paul).
This made it possible to reject biblical gun a certain number of other texts, whose apostolicity was particularly doubtful (in particular texts Judéo-chrétien S and/or Gnostique S).
It is also these doctrines which make it possible the Catholicisme to consider the New Testament as being one moment the written setting of a Tradition which exceeds it, rather than like normalizes judging this Tradition (as in the Protestantisme).
The rule of the Tradition Apostolique was defined by Saint Hippolyte of Rome at the beginning of the 3rd century.