Basil of Caesarea
Basil of Caesarea (c. 330–379), known as Basil the Great, was a Greek bishop and theologian who shaped Nicene Christianity and communal monastic life.
Nicene Creed: A Christian statement of faith first adopted at the Council of Nicaea in 325 and expanded at Constantinople in 381. Basil defended its confession of the Son’s full divinity amid fourth-century controversy.
Basilian Rule: A body of guidance attributed to Basil for organizing communal monastic life through prayer, work, obedience, and service. It translated Basil’s ascetic ideals into shared daily practice.
Gregory of Nazianzus: A fourth-century Cappadocian bishop and theologian known for his defense of Nicene Christianity and eloquent orations. He was Basil’s close friend and a fellow defender of Nicene theology.
Eastern Orthodox Church: A communion of self-governing Christian churches that traces its theology and worship to the early church. Basil remains a major saint and theological authority in its traditions.
Arianism: A fourth-century Christian theological movement that held the Son to be subordinate to, and not coeternal with, the Father. Its disputes prompted Basil to clarify language about the Father, Son, and Holy Spirit.
On the Holy Spirit: A theological treatise by Basil of Caesarea, written around 375, defending the honor and divinity of the Holy Spirit. Basil argued from scripture and liturgical practice against diminishing the Spirit’s status.
Gregory of Nyssa: A fourth-century Christian bishop and theologian, younger brother of Basil of Caesarea. Basil’s brother extended the Cappadocian theological project after Basil’s death.
Basilian monks: Eastern Christian monks who follow the communal monastic tradition associated with Basil of Caesarea. Their rules and practices reflect the enduring reach of Basil’s ascetic guidance.
Cappadocian Fathers: Three fourth-century theologians—Basil of Caesarea, Gregory of Nazianzus, and Gregory of Nyssa—associated with Cappadocia. Basil’s theology developed alongside the work of his brother and close friend.
Anaphora of Saint Basil: A Eucharistic prayer attributed to Basil and used in several Eastern Christian liturgical traditions. The liturgy preserves Basil’s theological influence in communal worship.