A modern icon in the style of Andrei Rublev’s icon of the Old Testament Trinity or the Hospitality of Abraham
This is Trinity Sunday, and today is the festal day for Christ Church Cathedral, Dublin – which is dedicated to the Most Holy and Undivided Trinity.
The tradition of observing the First Sunday after Pentecost as Trinity Sunday has unique roots in the Anglican tradition. The early Church had no special Office or day to honour the Holy Trinity. However, with the spread of the Arian heresy, the Church Fathers prepared an Office with canticles, responses, a Preface, and hymns, to be recited on Sundays.
Although prayers for this day, including a Preface for the Eucharist, are found in the Sacramentary of Saint Gregory the Great, other documents from the time of Pope Gregory VII call this first Sunday after Pentecost a Dominica vacans, or an ordinary Sunday, when there are no special offices. Nonetheless, the Office of the Holy Trinity, composed by Bishop Stephen or Liège (903-920), was recited in some places on this Sunday, and in other places on the Sunday before Advent.
Pope Alexander II (1061-1073) refused a petition for a special feast on this Sunday. Although he did not forbid the celebration where it already existed, he pointed out that such a feast was not customary in the Roman Church, and reminded the Church that the Holy Trinity is honoured every day in the use of the Gloria.
When Thomas a Becket (1118-1170) was consecrated Archbishop of Canterbury on the Sunday after Pentecost Day, his first act was to decree that the day of his consecration should be held as a new festival in honour of the Holy Trinity.
This observance spread from Canterbury throughout the Western Church. In the following century, a new Office for the Holy Trinity was written by the Franciscan friar, John Peckham (d. 1292), who was a Canon of Lyons and later became Archbishop of Canterbury.
Pope John XXII (1316-1334) ordered the feast for the entire Church on the first Sunday after Pentecost, establishing Trinity Sunday as a Double of the Second Class. It was only raised to the dignity of a Double of the First Class by Pope Pius X on 24 July 1911.
Nowadays, this day is observed in all the Western liturgical traditions, including the Anglican, Roman Catholic, Lutheran and Methodist traditions.
According to the Book of Common Prayer (2004), this Sunday is one of the “principal holy days which are to be observed” in the Church of Ireland. On this day, according to the Book of Common Prayer (p. 18), “it is fitting that the Holy Communion be celebrated in every cathedral and parish church or in a church within a parochial union or group of parishes.” The liturgical provisions for this day “may not be displaced by any other observance.”
I wonder how many parish churches in the Church of Ireland respect these liturgical provisions today? A quick glance at the Church Notices in The Irish Times yesterday morning made me wonder.
Following the pre-Reformation Sarum use, both the Church of Ireland and the Church of England name the Sundays that follow this day as “Sundays after Trinity,” although in America the Episcopal Church (TEC) now follows Roman Catholic usage, and calls them “Sundays after Pentecost.”
Although liturgically we are now in Ordinary Time, the liturgical colours change from green to white. The Book of Common Prayer (pp 771-773) places “the Creed (commonly called) of Saint Athanasius, also known as the Quicunque Vult” between the Catechism and the Preamble to the Constitution. However, it makes no provision for its use, although some churches in the Church of Ireland and the Church of England – especially those with a High Church tradition – sometimes use this creed on Trinity Sunday.
Surprisingly, this feast-day never spread to the Orthodox Church. In the Eastern Orthodox and Eastern Catholic Churches, the Sunday of Pentecost itself is called Trinity Sunday, and the Sunday after Pentecost is celebrated instead as All Saints’ Sunday. The Monday after Pentecost is called the Monday of the Holy Spirit, and the next day is called the Third Day of the Trinity. Although liturgical colours are not as fixed in Eastern practice, where normally there are simply “festive” colours and “sombre” or Lenten colours, in some churches green is used for Pentecost and its After-feast.
Andrei Rublev’s Trinity
One of the best-known presentations of the Trinity is found in Andrei Rublev’s icon, the Old Testament Trinity or the Hospitality of Abraham. This icon recalls the passage in Genesis 18, in which God visits Abraham and Sarah at Mamre. As the story unfolds, it becomes clear that Abraham’s guests – now only a single guest – are One, and the One is God.
Rublev’s icon itself is a masterpiece of composition: The viewer is being invited to join the meal; the doctrine of the Trinity as a community of Love into which the believer is invited to enter is depicted with clarity and simplicity; the icon communicates the idea that basis of the divine life is hospitality. The vanishing point in the sacred space is placed in front of the icon, inviting the viewer to enter into the holy mystery.
The author of the Letter to the Hebrews picks up the theme of the Hospitality of Abraham at the end of his epistle when he advises Christians not to neglect hospitality: “Do not neglect to show hospitality to strangers, for by doing that some have entertained angels without knowing it” (Hebrews 13: 2).
The Collect of Trinity Sunday:
Almighty and everlasting God,
you have given us your servants grace,
by the confession of a true faith,
to acknowledge the glory of the eternal Trinity
and in the power of the divine majesty to worship the Unity:
Keep us steadfast in this faith,
that we may evermore be defended from all adversities;
for you live and reign, one God, for ever and ever.
Canon Patrick Comerford is Director of Spiritual Formation, the Church of Ireland Theological Institute