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.

A devotional service of praise consisting of hymns sung while standing ("akathist" means "not sitting"). The most famous is the Akathist to the Theotokos, traditionally sung during the fifth Friday of Great Lent. Akathists can honor Christ, the Theotokos, or various saints. These services are deeply moving expressions of Orthodox hymnography and devotion.

The evening prayer service of the Orthodox Church, traditionally celebrated at sunset. Vespers includes psalms, hymns, scripture readings, and incense. On Saturday evenings, Great Vespers is often combined with the Sunday Divine Liturgy. The service marks the end of the liturgical day and prepares the faithful for rest and reflection.

The descent of the Holy Spirit upon the Apostles fifty days after Pascha, marking the full revelation of the Holy Trinity and the beginning of the Church's mission in the world. During Vespers, special kneeling prayers are offered and the church is adorned with greenery. This feast celebrates the completion of Christ's saving work and the outpouring of the Holy Spirit upon all believers. From this day forward, the Sundays of the year are numbered from Pentecost, signifying the continual life and growth of the Church in the grace of the Spirit.

The midpoint between Pascha and Pentecost, celebrated on the Wednesday of the fourth week after Pascha. This feast commemorates Christ teaching in the Temple during the Feast of Tabernacles, offering "living water" to those who believe. The day connects Christ's Resurrection with the coming gift of the Holy Spirit, emphasizing continuous spiritual refreshment.

The 20th-century Russian priest who served in Pennsylvania and was known for his pastoral care and spiritual gifts. Celebrated on May 13th, Alexis (Toth) came to America in 1889 and served Carpatho-Russian communities. Despite facing ecclesiastical difficulties, he remained faithful to Orthodox tradition and helped establish Orthodoxy in America.

The "Feast of Feasts" celebrating Christ's Resurrection from the dead. The most important celebration in the Orthodox Church, Pascha determines the date of all moveable feasts. The service begins with the joyful midnight proclamation "Christ is Risen!" and continues with the Divine Liturgy of St. John Chrysostom.

A lengthy service combining Vespers and Matins, traditionally celebrated on the eve of Sundays and major feasts. The All-Night Vigil includes the singing of "Lord, I Call," the Magnificat, the Great Doxology, and numerous psalms and hymns. This service prepares the faithful spiritually for the upcoming feast.

The celebration of Christ's ascension into heaven forty days after His Resurrection, witnessed by the Apostles. This moveable feast always falls on a Thursday and marks Christ's return to the Father and His promise to send the Holy Spirit. The feast emphasizes both Christ's divine nature and His continued presence with the Church.