We acknowledge the Trinity, holy and perfect, to consist of the Father, the Son and the Holy Spirit. In this Trinity there is no intrusion of any alien element or of anything from outside, nor is the Trinity a blend of creative and created being. It is a wholly creative and energising reality, self-consistent and undivided in its active power, for the Father makes all things through the Word and in the Holy Spirit, and in this way the unity of the holy Trinity is preserved. Accordingly, in the Church, one God is preached, one God who is above all things and through all things and in all things. God is above all things as Father, for he is principle and source; he is through all things through the Word; and he is in all things in the Holy Spirit.
Writing to the Corinthians about spiritual matters, Paul traces all reality back to one God, the Father, saying: Now there are varieties of gifts, but the same Spirit; and varieties of service, but the same Lord; and there are varieties of service but the same Lord; and there are varieties of working, but it is the same God who inspires them all in everyone.
Even the gifts that the Spirit dispenses to individuals are given by the Father through the Word. For all that belongs to the Father belongs also to the Son, and so the graces given by the Son in the Spirit are true gifts of the Father. Similarly, when the Spirit dwells in us, the Word who bestows the Spirit is in us too, and the Father is present in the Word. This is the meaning of the text: My Father and I will come to him and make our home with him. For where the light is, there also is the radiance; and where the radiance is, there too are its power and its resplendent grace.
This is also Paul’s teaching in his second letter to the Corinthians: The grace of our Lord Jesus Christ and the love of God and the fellowship of the Holy Spirit be with you all. For grace and the gift of the Trinity are given by the Father through the Son in the Holy Spirit. Just as grace is given from the Father through the Son, so there could be no communication of the gift to us except in the Holy Spirit. But when we share in the Spirit, we possess the love of the Father, the grace of the Son and the fellowship of the Spirit himself.
Saint Jerome in his sermon on Psalm 41 gave an immortal reflection on the Trinity:
Like a deer that longs for springs of water, so my soul longs for you, O God. Now just as those deer long for springs of water, so do our deer. Fleeing Egypt – that is, fleeing worldly things – they have killed Pharaoh and drowned all his army in the waters of baptism.
Now, after the devil has been killed, they long for the springs of the Church: the Father, the Son, and the Holy Spirit.
We can find the Father described as a spring in Jeremiah: They have abandoned me, the fountain of living water, to dig themselves leaky cisterns that cannot hold water.
About the Son we read somewhere: They have forsaken the fountain of wisdom. Continue Reading
We have sufficiently spoken of the Father and of the Son, so far as was possible for us to see through this glass and in this enigma. We must now treat of the Holy Spirit, so far as by God’s gift it is permitted to see Him. And the Holy Spirit, according to the Holy Scriptures, is neither of the Father alone, nor of the Son alone, but of both; and so intimates to us a mutual love, wherewith the Father and the Son reciprocally love one another. But the language of the Word of God, in order to exercise us, has caused those things to be sought into with the greater zeal, which do not lie on the surface, but are to be scrutinized in hidden depths, and to be drawn out from thence. The Scriptures, accordingly, have not said, The Holy Spirit is Love. If they had said so, they would have done away with no small part of this inquiry. But they have said, God is love; so that it is uncertain and remains to be inquired whether God the Father is love, or God the Son, or God the Holy Ghost, or the Trinity itself which is God. For we are not going to say that God is called Love because love itself is a substance worthy of the name of God, but because it is a gift of God, as it is said to God, You are my patience. For this is not said because our patience is God’s substance, but in that He Himself gives it to us; as it is elsewhere read, Since from Him is my patience. For the usage of words itself in Scripture sufficiently refutes this interpretation; for You are my patience is of the same kind as You, Lord, art my hope, and The Lord my God is my mercy, and many like texts. And it is not said, O Lord my love, or, You are my love, or, God my love; but it is said thus, God is love, as it is said, God is a Spirit. And he who does not discern this, must ask understanding from the Lord, not an explanation from us; for we cannot say anything more clearly. Continue Reading