The '''Pentecostarion''' (also known as the ''Flowery Triodion'' or ''Festal Triodion'') is the service book of the Orthodox Church that provides the texts for the moveable portions of the divine services from Pascha through the feast of [[All Saints]] (the Sunday following [[Pentecost]]).
==Pascha: The Resurrection of Our Lord and Savior Jesus Christ==
The [[Pascha]] Troparion is sung at each of the daily services until [[Ascension]] Day. At each of the Sunday services the Easter [[canon]] and [[hymn]]s are repeated. The [[epistle]] readings are taken from the [[Acts of the Apostles]], telling of the first Christians who lived in communion with the Risen Lord, and all of the [[gospel]] readings are taken from the [[Gospel of John]].
Every day during the week of Easter, called [[Bright Week]] , the paschal services are celebrated in all their splendor. The procession is repeated daily. The doors of the sanctuary remain open. A day without end.
==Seventh Sunday of Pascha: Fathers of the 1st Ecumenical Council==
On the seventh Sunday of Pascha, we commemorate the holy God-bearing [[Fathers of the First Ecumenical Council]].