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 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.

Brief prayer services traditionally celebrated at specific times of day: First Hour (6 AM), Third Hour (9 AM), Sixth Hour (noon), and Ninth Hour (3 PM). Each Hour includes psalms, troparia, and prayers appropriate to that time of day. These services sanctify the day and connect us to Christ's Passion, as they commemorate specific moments in His crucifixion and death.

The sacrament of reconciliation through which the faithful confess their sins to a priest and receive absolution. Also called the sacrament of repentance or penance, confession restores the baptismal purity lost through sin and reconciles the penitent with God and the Church. The penitent stands before an icon of Christ while confessing to the priest, who acts as a witness and minister of God's forgiveness. The priest then covers the penitent's head with his epitrachelion (stole) and pronounces the prayer of absolution.

A special Lenten service combining Vespers with communion using bread consecrated at a previous Divine Liturgy. Celebrated on Wednesday and Friday evenings during Great Lent, this service allows the faithful to receive communion during the fasting period without celebrating the full Divine Liturgy. It maintains the penitential character of Lent while providing spiritual nourishment.

The celebration of Christ's triumphal entry into Jerusalem, when crowds welcomed Him with palm branches. This feast begins Holy Week and is marked by the blessing and procession of palm branches (or pussy willows in northern climates). The service combines joy for Christ's kingship with anticipation of His upcoming Passion.

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 "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.