Theophany is a feast celebrating God revealing Himself to us. The revelation though is a surprising mystery – for God is not a Him but a Trinity of Divine Persons – the Father, the Son and the Holy Spirit. At Theophany we hear the voice of the Father, are aware of the Holy Spirit present in the form of a dove, and see the Son who is Jesus the incarnate God baptized in the River Jordan. The Trinity is manifested at the Baptism of Christ.
St Nicholas Cabasilas writes:
“Even though it is by one single act of loving-kindness that the Trinity has saved our race, yet each of the blessed Persons in said to have contributed something of His own. It is the Father who is reconciled, the Son who reconciles, while the Holy Spirit is bestowed as a gift on those who have become friends. The Father has set us free, the Son was the ransom by which we are freed, but the Spirit is freedom, for Paul says, “where the Spirit of the Lord is, there is freedom” (2 Cor. 3:17). The Father has re-shaped us, by means of the Son we were re-shaped, but “it is the Spirit who gives life” (Jn. 6:63). The Trinity was foreshadowed even at the first creation. Then the Father created, and the Son was the hand for Him who created, but the Paraclete was the breath for Him who inbreathed the life.”
(The Life in Christ, p. 74)