Theologian · Patristic
St. Basil the Great
c. 330–379 · Cappadocian theology
Doctor of the Church; one of the Three Holy Hierarchs; patriarch of Eastern monasticism.
Bishop of Caesarea in Cappadocia, brother of Gregory of Nyssa and friend of Gregory Nazianzen. He fixed the Trinitarian language of one ousia and three hypostases, defended the divinity of the Holy Spirit by appeal to the Church's unwritten tradition, wrote the rules that still govern Eastern monks, founded the first great Christian hospital, and preached fiercely that the surplus of the rich belongs to the poor.
Why he matters: The Divine Liturgy that bears his name, the monastic Rule that shaped St. Benedict, and his doctrine that the Church's liturgical tradition is a source of dogma make him a pillar of both lungs of the Church.
Documented positions
Where this thinker stands on each dispute the test covers.