A physician and companion of Paul, and the traditional author of the Gospel of Luke and the Acts of the Apostles. Considered the first iconographer and patron saint of artists and physicians. Feast day: Oct. 18.

German theologian and priest who initiated the 16th-century Protestant Reformation by emphasizing salvation by faith alone, the authority of Scripture, and the priesthood of all believers. Feast day: Feb. 18.

A professional graduate-degree program, generally three years in duration, preparing individuals for ministry in congregations and other religious institutions and contexts.

A fourth-century monastic, theologian, and teacher, and influential older sister of the Cappadocians, Basil of Caesarea and Gregory of Nyssa. Feast day: July 19.

Capitalize in reference to the wise men from the East who brought gifts to the infant Jesus. Lowercase other references to the three kings, unless used in composition titles or feast day references.

Major celebrations of the church year for which the Book of Common Prayer appoints proper collects, psalms, and lessons.

Eucharistic vestment, typically an oblong band of silk or linen, worn above the left wrist.

An 11th-century queen of Scotland and reformer credited with removing Celtic influences in the Scottish Church. Feast day: Nov. 16.

One of the 12 apostles, traditionally considered to be the author of the second Gospel, although scholars believe the author was anonymous. Also said to be the first bishop of Alexandria. Feast day: April 25.

A holy and lifelong covenant between two people, made in the sight of God and before the church, characterized by love, fidelity, mutual support, and God's blessing.