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 presentation of the three-year-old Virgin Mary in the Temple by her parents, Saints Joachim and Anna. Celebrated on November 21st, this feast honors Mary's dedication to God and her preparation for her role as Theotokos. According to tradition, Mary was raised in the Temple until her betrothal to Joseph.