Easter is the feast of the Resurrection of Jesus Christ from the dead — the oldest, highest, and most central celebration of the Christian year. Every other movable feast and fast is calculated from it; every Sunday is a weekly Easter. The date is determined by the Paschal computation established at the Council of Nicaea (325): Easter falls on the first Sunday after the first full moon on or after the vernal equinox (March 21), placing it between March 22 and April 25. The earliest Christians appear to have observed an annual Pascha from a very early period, though the precise origins are debated. The Quartodeciman controversy of the second century — whether to celebrate the Pascha on Nisan 14 (regardless of the day of the week) or always on a Sunday — attests that the observance was already widespread and deeply important by the mid-100s. Polycarp of Smyrna reportedly discussed the matter with Anicetus of Rome around 155 (Eusebius, HE 5.24), and the issue was sharp enough to prompt Victor of Rome to threaten excommunication of the Asian churches, a threat moderated by Irenaeus's famous appeal for peace. The Nicene resolution in favor of the Sunday observance became universal in the mainstream Church, though some groups maintained the Quartodeciman practice for centuries. The Great Vigil of Easter is among the most ancient liturgies in Christianity, with roots traceable to at least the third century (Apostolic Tradition). By the fourth century, Egeria describes an elaborate Jerusalem vigil with baptisms, and Augustine attests a similar pattern in North Africa.

The Great Vigil, which the BCP 2019 describes as 'the first liturgy of Easter Day,' begins in darkness. The Paschal Candle is lit from new fire — a symbol of Christ as the light of the world entering the darkness of the tomb. The Exsultet, the great hymn of praise to the Paschal Candle, is among the most magnificent pieces of Christian hymnody, attested from at least the fourth century (Ambrose may have composed an early version). The vigil readings trace salvation history from creation through the Exodus to the prophets, building to the proclamation of the Resurrection Gospel. Historically, the Vigil was the primary occasion for baptism — new Christians dying and rising with Christ through the waters, emerging to receive their first Eucharist on the night of the Resurrection. The BCP 2019 provides for baptism or renewal of baptismal vows at the Vigil. The Easter morning liturgy opens with the Paschal greeting: 'Alleluia! Christ is risen! / The Lord is risen indeed! Alleluia!' — a form attested across virtually every Christian tradition. The fifty days of Eastertide that follow (through Pentecost) are treated as a single unbroken feast — no fasting, no kneeling for prayer, Alleluias throughout. Easter eggs, the custom of which is documented from at least the thirteenth century, symbolize the sealed tomb and new life breaking forth. Easter is not a day but a season.

Charles Henry Brent was born in 1862 in Canada and ordained to the Episcopal priesthood. Recognizing the spiritual needs of colonial subjects in the newly acquired Philippines, he accepted appointment as Bishop of the Philippines in 1901, where he served for 17 years. During his Philippine episcopate, Brent developed a worldwide vision for Christian unity, becoming convinced that the divisions between Christian denominations were a scandal that hindered Christian witness. In 1910, while attending the Edinburgh Missionary Conference, Brent proposed the creation of a new movement dedicated to restoring communion between separated Christian bodies through theological dialogue. This initiative became the Faith and Order movement, which he chaired for the remainder of his life. The first official Faith and Order Conference convened in Lausanne in 1927, representing a watershed moment in the modern ecumenical movement. Brent served as Bishop of Western New York from 1918 onwards and during World War I was appointed Chief of Chaplains for the American Expeditionary Forces, a role in which he advocated for pastoral care and spiritual resources for soldiers. He was also a passionate advocate for international narcotics control and social reform. He died on March 29, 1929, leaving behind the Faith and Order movement as his primary legacy to the modern church.

Brent is honored as one of the founding fathers of the modern ecumenical movement. His conviction that Christian unity should be pursued through theological dialogue rather than organizational merger established the Faith and Order methodology, which remains central to ecumenical work. He exemplifies the Anglican conviction that visible church unity is both theologically necessary and practically achievable. His legacy includes the continuing work of Faith and Order commissions within the World Council of Churches.