The Catholic Church also follows this biblical model in her
approach to paradosis/traditions.
Hence, there are paradosis/traditions which are unchangeable,
capital letter "T", "Traditions." These are the defined faith or
moral teachings based on the Bible but revealed by the Holy
Spirit as an authority in the Church (Acts 15:28). An example
from the history of the Catholic Church of Tradition (with a
capital letter "T") is the teaching on purgatory. This teaching of
the Church can never change.
There appear to be paradosis/traditions which are changeable,
small letter "t", "traditions." These are the "rules of the
organization, rules of the club." These change as people,
culture, faith and understanding develop. An example from
the history of the Catholic Church of tradition (with a lower
case letter "t") is the teaching on the prohibition of eating
meat on Fridays. This practice of mandatory abstinence
as penance in the Church has changed.