Day 38: Summary of the Trinity

The mystery of the Most Holy Trinity is the central mystery of the Christian faith and of Christian life. God alone can make it known to us by revealing himself as Father, Son and Holy Spirit. CCC 261

In today's reading, we are given another "In Brief" section summarizing what has gone over the past few days. There's really not much to add to what I've already said on this, but I did like this from the Athanasian Creed:

"Now this is the Catholic faith: We worship one God in the Trinity and the Trinity in unity, without either confusing the persons or dividing the substance; for the person of the Father is one, the Son's is another, the Holy Spirit's another; but the Godhead of the Father, Son and Holy Spirit is one, their glory equal, their majesty coeternal." CCC 266 

As the Catechism Companion, Vol I puts it:

There is a sense that when one Person of the Trinity is present, all are present. When one acts, all act, yet in a distinctive way. (p. 80) 

Representation of the Trinity in the form of the mercy seat (epitaph from 1549)