For Holy Trinity Sunday, rich Trinitarian truth from Darrell W. Johnson:
‘At the center of the universe is a relationship.’ That is the most fundamental truth I know. At the center of the universe is a community. It is out of that relationship that you and I were created and redeemed. And it is for that relationship that you and I were created and redeeemed! And it turns out that there is a three-fold-ness to that relationship. It turns out that the community is a Trinity. The center of reality is Father, Son, and Holy Spirit…the doctrine of the the Trinity is not the result of philosophical speculation carried out in ivory towers, cut off from real life. It is the result of ordinary believers trying to make sense of the facts of God’s self-revelation–and trying to live in the light of those facts . . .
What does it all mean? It means that in the deepest mystery of his being God is an intimate relationship, a fellowship, a community of love.
What does all this mean for us as human beings? It is in that three-fold subsistence of love that we ‘live and move and have our being’ (Acts 17:28).
It is out of that love that God the Father created the world (and us in it) through the agency of his Son and energy of his Spirit.
It is out of that love that God the Father sent the Son into the world to be born of the Virgin Mary through the power of the Spirit.
It is out of that love that God the Father handed over the Son, through the Spirit, to the cross, reconciling the world to himself.
It is out of that love that God the Father sends the Spirit in the name of the Son to dwell within those whom the Son purchased for the Father.
From our creation, to our redemption, to our glorification, we participate in God’s Trinitarian love.
~ Darrell W. Johnson in Experiencing the Trinity, pp. 37, 39, 51-52.