Thanks to Amy at Splendor in the Ordinary, I learned something new about the church calendar – this coming Sunday is Trinity Sunday.  (As someone who does not come from a liturgical tradition, but tries to live within the rhythm of the seasons, I love learning new things!!)

Here is what someone wrote about Trinity Sunday:

From Advent through Pentecost, the church celebrates with joy and thanksgiving what Father, Son, and Holy Spirit have done to accomplish the salvation of sinful humanity.  During the Season after Pentecost, we focus on how we as Christians ought to respond to the love that God has shown us.  Trinity Sunday is a transitional day that bridges these two parts of the liturgical year.  This is the solemn day on which we praise and adore God both for what He has done for the world and for who He is.  As it is so beautifully confessed in the Athanasian Creed:

We worship one God in Trinity and Trinity in Unity,
Neither confusing the persons nor dividing the substance.
For the Father is one person, the Son is another, and the Holy Spirit is another.
But the Godhead of the Father and of the Son and of the Holy Spirit is one:
the glory equal, the majesty coeternal.