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.
===Wednesday of the Fourth Week after Pascha: Mid-feast of Pentecost===
Wednesday of the Fourth Week is called the feast of Mid-Pentecost, at which Christ, "in the middle of the feast" teaches men of his saving mission and offers to all "the waters of immortality", from the Gospel of St John (7:14).
Again the faithful are reminded of the Master's presence and his saving promise: "If anyone is thirsty let him come to me and drink" (John 7:37) .
==Fifth Sunday of Pascha: The Samaritan Woman ==
[[Image:Samaritan Woman.JPG|thumbnail|right|The Samaritan Woman]]
The fifth Sunday
after Easter deals with the [[Photine of Samaria|woman of Samaria]] with whom Christ spoke at Jacob's Well from the Gospel of St John (4). Again the theme is the "living water" and the recognition of Jesus as God's Messiah (John 4:10-11; 25-26).
This is a reminded of new life in Christ, of drinking of the "living water," of true worship of God in the Christian messianic age "in Spirit and in Truth" (John 4:23-24). Salvation is offered to all: Jews and Gentiles, men and women, saints and sinners.
==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]].
==Sunday of All Saints==
[[Image:All saints.jpg|thumbnail|right|All Saints]]
The Sunday following Pentecost is dedicated to All Saints, both those who are known to us, and those who are known only to God. There have been saints at all times, and they have come from every corner of the earth. They were [[Apostles]], [[Martyrs]], [[
Prophets]], [[ Hierarchs]], [[Monastics]], and [[Righteous]], yet all were perfected by the same [[Holy Spirit]].
The descent of the Holy Spirit makes it possible for us to rise above our fallen state and to attain sainthood, thereby fulfilling God's directive to "be holy, for I am holy" (Lev. 11:44, 1 Peter 1:16, etc.). Therefore, it is fitting to commemorate All Saints on the first Sunday after Pentecost.
==Sunday of the (local church) saints==