Catholic Christians believe
that the promise of the Spirit of
Truth to guide believers in
truth is found in the constant faith
of the Church as preserved in
the writings of the Doctors of
the Church also, equally
"faithful people."
The Doctors of the Church are
eminent Christian teachers
who are proclaimed to be worthy of the title.
The Church recognized these
faithful people and teachers for
their contribution to the
belief and understanding of the faith.
Doctors of the Church must
be canonized a saint, known for
their learning, and
must be proclaimed such by either the
Bishop of Rome or an
ecumenical council.