Pentecost commemorates the descent of the Holy Spirit upon the apostles fifty days after Easter (Acts 2:1-41). The name derives from the Greek pentekostos, 'fiftieth,' referring to the Jewish festival of Shavuot (the Feast of Weeks), which falls fifty days after Passover. The typological connection is deliberate and profound: as the Law was given at Sinai fifty days after the Exodus, so the Spirit was given fifty days after the Resurrection, writing the law on human hearts rather than tablets of stone (cf. Jeremiah 31:33, 2 Corinthians 3:3). The Christian observance of Pentecost is among the oldest feasts after Easter itself. Tertullian (De Baptismo 19, c. 200 AD) mentions Pentecost as a season particularly appropriate for baptism, suggesting it was already a significant liturgical occasion by the early third century. The Council of Elvira (c. 305) references the Pentecost season. Eusebius (Vita Constantini 4.64) records that Constantine was baptized at Pentecost. By the fourth century, the feast was universally observed across both East and West. The BCP 2019 lists Pentecost among the seven Principal Feasts — the highest liturgical rank — and the Day of Pentecost is one of the four traditional Ember Day anchors, when prayers are offered for those called to Holy Orders.

Pentecost carries a distinctive liturgical character shaped by its dual identity as both the culmination of Easter and its own feast. The color is red — for the tongues of fire (Acts 2:3) and for the Spirit's presence in the Church. In the medieval West, the custom of releasing doves or dropping rose petals from church ceilings dramatized the Spirit's descent; the French name for Pentecost, Pâques des Roses, recalls this practice. The sequence hymn Veni Sancte Spiritus ('Come, Holy Spirit'), attributed to Stephen Langton (c. 1200), became one of the most beloved Pentecost texts in Western Christianity. In the East, Pentecost is closely linked with the feast of the Holy Trinity, which the Byzantine tradition celebrates on the same day (the West assigns Trinity to the following Sunday). The Kneeling Prayers of Pentecost Vespers in the Byzantine rite mark the formal end of the Paschal season: the congregation kneels for the first time since Easter. The BCP 2019 provides two collects — the first emphasizing the Spirit's revelation of 'the way of eternal life to every race and nation,' the second (from the 1549 BCP) asking for 'a right judgment in all things.' The Old Covenant overlay is significant: Shavuot celebrates both the wheat harvest and the giving of Torah, and the Pentecost narrative in Acts deliberately echoes Sinai imagery — the sound of wind, the appearance of fire, the gathering of nations.

Luke 1:39-56 records the visitation. After the Annunciation, Mary 'rose up in those days' and went 'into the hill country' to visit Elizabeth, the mother of John the Baptist. Luke notes that Elizabeth was 'in her sixth month' (of pregnancy), while Mary had just conceived Jesus—placing the visitation chronologically six months before John's nativity.

When Mary greeted Elizabeth, the unborn John 'leaped in the womb,' and Elizabeth was 'filled with the Holy Spirit.' She cried out in a loud voice: 'Blessed are you among women, and blessed is the fruit of your womb! And why has this happened to me, that the mother of my Lord comes to me?' Elizabeth's recognition of Mary as 'the mother of my Lord' is theologically significant: the unborn John bore witness to the unborn Jesus; the Holy Spirit filled Elizabeth with prophetic knowledge.

In response to Elizabeth's greeting, Mary sang her great canticle, the Magnificat (Luke 1:46-55): 'My soul magnifies the Lord, and my spirit rejoices in God my Savior, for he has looked with favor on the lowliness of his servant.... He has brought down the powerful from their thrones and lifted up the lowly; he has filled the hungry with good things and sent the rich away empty.'

The Magnificat is a revolutionary hymn of divine justice and mercy, echoing the song of Hannah (1 Samuel 2:1-10) and the themes of the Psalms. It celebrates God's preferential option for the lowly and his overturning of human hierarchies. Mary remained with Elizabeth 'about three months' (through the birth of John) and then returned to her home.

The May 31 date (or June 1 in some traditions) has been observed since at least the late medieval period, though the feast was not universally standardized until later. The feast celebrates not merely a historical event but a moment of encounter between the two greatest figures of the Old Testament order (John, the last of the prophets) and the New Testament order (Jesus, the Son of God). It marks the moment when the 'great things' God promised to do for Mary began to unfold in history.

Traditionally, the Visitation is understood as a moment of profound encounter between the old and new covenants—between John, the greatest of the prophets, and Jesus, the Messiah. The greeting of Elizabeth and the leap of John in the womb are seen as a form of witness and honor to the incarnate Son of God. The Magnificat has been sung daily in the Christian Church at Evening Prayer (Vespers) since ancient times and is one of the most beloved prayers in Christian tradition. Mary's voluntary journey to serve and care for her elderly cousin is portrayed as an example of Christian charity and humility.