This week it may appear on the surface that the Church calendar is a bit disjointed. One week after celebrating the Pentecostal feast commemorating the giving of the Holy Spirit to the Church the calendar jumps to a feast that celebrates the Doctrine of the blessed Holy Trinity. Over the first half of the Church year, we have been focusing upon and recapitulating the historical events in the life of Jesus Christ (His incarnation and birth, His earthly ministry, His triumphant entry into Jerusalem, His passion and sacrificial death, His victorious resurrection, His glorious ascension and His sending of the Holy Spirit). Now it seems that we abruptly change themes by focusing upon a theological, biblical truth.
However, it really is quite appropriate for us to focus our attention upon the Triune Godhead the Sunday after the Holy Ghost has come upon the Church. You see, now the fullness of God has been revealed to us with the giving of the Holy Spirit. The Holy Trinity has, of course, always existed, but after God the Father (the First Person of the Trinity) sent God the Son (the Second Person of the Trinity) into the world to redeem the world, and God the Father and God the Son sent God the Holy Spirit (the Third Person of the Trinity) to indwell and empower His Church; the Church came to understand in a deeper way the God they were called to worship and serve.
As Rev. Dr. Peter Toon puts it, “In the great work of divine [progressive] revelation and redemption, salvation and sanctification, the Holy Trinity is wholly involved, as the Father sends the Son into the world where he assumed human nature by the presence of the Holy Ghost, and where the Holy Ghost acts in the Name of the Son.” Therefore, since the Holy Trinity has been involved with every aspect of the historical, redemptive acts and events that we have been reliving through the various church seasons; it was very wise for the Church to appoint this Sunday as Trinity Sunday – a day on which we focus our devotion and meditation upon the Triune God. (The Father, The Son, and The Holy Ghost, Three Persons One God, a Trinity in Unity and a unity in Trinity).
In the older lectionaries, the remainder of the Church year bore the name of the Holy Trinity because of what Jesus said in our Gospel lesson from last week. “But the Comforter, which is the Holy Ghost, whom the Father will send in my name, He shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you.” Now that the Holy Spirit has come upon the Church, God the Father through the redeeming work of God the Son and by the power and strength given to us by the Holy Spirit will mature us in the Christian faith.
Consequently, the Season of Pentecost/Trinity into which we are about to enter is a season for our spiritual growth. This is represented by the liturgical color of green. Pentecost Season is a time when we are to allow the Holy Spirit to lead us into all truth that God the Father and God the Son want to teach us through the written Word (Old Testament, Psalm, Epistle, and Gospel readings) and the Sacraments.