Columbia subject headings:
Catholic Church--Doctrines.
Councils and synods, Ecumenical.
Faith.
Love--Religious aspects--Catholic Church.
Sacraments--Catholic Church.
Harvard subject headings:
Catholic Church--Doctrines.
Faith.
Love--Religious aspects--Catholic Church
Sacraments--Catholic Church
Princeton subject headings:
Catholic Church--Doctrines.
Faith.
Love--Religious aspects--Catholic Church.
Sacraments--Catholic Church.