Columbia subject headings:
Maximus, Confessor, Saint, approximately 580-662.
Trinity.
Harvard subject headings:
Jesus Christ--History of doctrines--Early church, approximately 30-600.
Jesus Christ--History of doctrines--Early church, ca. 30-600.
Maximus, Confessor, Saint, approximately 580-662
Trinity--History of doctrines--Early church, ca. 30-600.
Princeton subject headings: