The central worship service of the Orthodox Church, celebrating the Eucharist (Holy Communion). Usually celebrated on Sundays and feast days, the Divine Liturgy consists of the Liturgy of the Word (scripture readings) and Liturgy of the Faithful (Eucharistic prayer and communion). The most common forms are the Liturgies of St. John Chrysostom and St. Basil the Great.

The morning prayer service of the Orthodox Church, traditionally celebrated at dawn. Also called Orthros in Greek tradition, this service includes the reading of the Gospel, the Great Doxology, and numerous psalms and hymns. Matins prepares the faithful for the day and is often celebrated immediately before the Divine Liturgy on Sundays and feast days.

The fiery Old Testament prophet who defended monotheism against Baal worship and was taken up to heaven in a chariot of fire. Celebrated on July 20th, Prophet Elijah represents zealous faith and God's power over false gods. His appearance at the Transfiguration alongside Moses shows his continued importance in Christian revelation.

The tax collector called by Christ to be an apostle and evangelist. Celebrated on November 16th, Matthew wrote the Gospel that emphasizes Christ as the fulfillment of Old Testament prophecy. His calling from the tax booth demonstrates God's grace in transforming lives. He's patron of accountants and tax collectors.

The ceremonial procession of the Holy Cross on August 1st, traditionally marking the beginning of the Dormition Fast. This feast involves carrying the Cross in procession for veneration and blessing. It serves as spiritual preparation for the Dormition feast and emphasizes the Cross as our protection and source of strength.

The revelation of Christ's divine glory to Peter, James, and John on Mount Tabor. Christ appeared in brilliant light alongside Moses and Elijah, and the Father's voice proclaimed "This is My beloved Son." Grapes and other fruits are traditionally blessed on this feast, celebrated on August 6th.

The "falling asleep" and assumption of the Virgin Mary into heaven. Preceded by a two-week fast, this feast on August 15th celebrates Mary's death and her bodily assumption. Orthodox theology teaches that Mary experienced death but was immediately raised and taken to heaven, where she intercedes for all Christians.