This Sunday, 7th June 2020 is Trinity Sunday. Trinity Sunday is the first Sunday after Pentecost in the Western Christian liturgical calendar. Trinity Sunday celebrates the Christian doctrine of the Trinity, the three Persons of God: the Father, the Son, and the Holy Spirit.
The triquetra (below) is sometimes used to represent the Holy Trinity: Father, Son, and Holy Spirit. It is a form of Celtic knot work and is sometimes shown with an interlocking circle, as well, as shown below.
Trinity Sunday is a Principal Feast in the Anglican Church, and marks the start of the second and longest section of "Ordinary Time" in the liturgical year. This period continues up to the first Sunday in Advent. (The first is from Christ's Baptism to Ash Wednesday.) Trinity Sunday is the Sunday following Pentecost, and eight weeks after Easter Sunday. The earliest possible date is May 17 and the latest possible date is June 20.
Green is the liturgical colour for Ordinary Time, although white is used for Trinity Sunday as a Principal Feast. (An interesting topic in its own right, but worth a read if you are preparing for your Gold Award. It's all useful background knowledge!)
History note on Trinity Sunday in the Anglican church
Thomas Becket (1118–70) was consecrated Archbishop of Canterbury on the Sunday after Pentecost (Whitsun), and his first act was to ordain 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 whole of western Christendom.
Music for Trinity Sunday
A beautiful piece for Trinity Sunday is Victoria's "Duo Seraphim", you can download the music here. However I absolutely love Geurrero's "Duo Seraphim" which I was fortunate enough to perform in concert a couple of years back. Written for triple choir, this cleverly builds on the text to celebrate the Trinity. The music can be downloaded here.
