On Trinity Parents' Saturday in the Orthodox world, it is customary to remember the dead. This tradition dates back to apostolic times. The Apostle Peter on this day, turning to the Jews, says about the Risen Savior: God raised Him by breaking the bonds of death (Acts. 2, 24). The apostolic decrees state that the apostles, being filled with the Holy Spirit at Pentecost, preached to the Jews and pagans our Savior Jesus Christ, Judge of the living and the dead.
Following this tradition, the Holy Church has long called for the commemoration of all deceased pious forefathers, fathers, brothers and sisters before the day of the Most Holy Trinity.
Trinity Saturday is universal and represents the last day of the Church of the Old Testament before the revelation in its entirety of the Church of Christ on Pentecost.
The Holy Church calls on this Sabbath to make a commemoration so that the saving grace of the Holy Spirit will cleanse the sins of the souls of all from the age of the dead and asks for the assembly of all into the Kingdom of Christ, praying « to rest the souls of those who left before in the place of cooling, as the not dead will praise Ty, Lord, below those who exist in hell of confession dare to bring it to You, but we, the living, bless Ty and pray, and offer cleansing prayers and sacrifices to You for their souls».
Funeral Liturgies and memorial services are celebrated in all churches on this day. In the temple you can order a commemoration of the names of the deceased at the liturgy. The commemoration is performed by the clerics in the altar, when particles are removed from the prosphora, which are then immersed in a bowl with the Body and Blood of Christ. At this moment a prayer is read: «Wash, Lord, the sins here remembered by Your Honest Blood, by the prayers of Your saints».
All believers are advised to go to the cemetery after visiting the temple.