HOMILY for Trinity Sunday (A)
People sometimes say that Jews, Muslims and Christians worship the same God. And there is some truth in this for we can all say: “I believe in one God”. However, this is not the complete truth. For the one God who we Christians worship and profess in the Creed, who is revealed to us by Jesus Christ, and who is expounded in Scripture and Tradition, is the Most Holy Trinity, Father, Son and Holy Spirit. And this truth, this great mystery matters. For truth matters, especially when it concerns the highest truths about God and our salvation. Hence the Church struggled and theologians argued for centuries to understand and express its meaning, and the difference it makes is of such import that it would set Christians apart from Judaism, and gave St John of Damascus cause to consider the emerging religion of Islam in the 7th-century to be a heresy. For there is a strict monotheism present in both Islam and Judaism that we Christians cannot profess as the full truth; something essential is lacking. So, from this point of view, we do not worship the same God. Rather, as the prayers of today’s Mass say, we profess “the true faith”, of God the “eternal holy Trinity and undivided Unity”.
In fact, you have probably already professed this truth several times today. Whenever we make the sign of the Cross we invoke the Holy Trinity. And at the same time, in tracing the Cross over ourselves we say that God saves us through the Cross of Jesus Christ. So, this one action, which we probably don’t consciously take much note of, says what matters most about the God we worship and about Mankind’s salvation. Indeed this action expresses what Jesus says in today’s Gospel: that “God so loved the world that he gave his only Son”. (Jn 3:16).
St Paul, in today’s Second Reading, refers to the Triune God as “the God of love and peace” (2 Cor 13:11), and this can be related to the Gospel. For the Father is the God of love, who so loved us that he sent Jesus to reconcile sinful humanity to himself. The Fourth Eucharistic Prayer puts it like this: “When through disobedience [Mankind] had lost your friendship, you did not abandon him to the domain of death… And you so loved the world, Father most holy, that in the fullness of time, you sent your Only Begotten Son to be our Saviour”. The Son, then, is the God of peace, who puts an end to the disturbance and rebellion that is sin, and restores Mankind to peace and friendship with God. Indeed, Christ gives his Church his peace, which is freedom from sin and a share in his divine Sonship, union with God. In the Mass it is put this way: “Peace I leave you, my peace I give you: look not on our sins but on the faith of your Church, and graciously grant her peace and unity…”. But what about the Holy Spirit? He is present, I think, in this: St Paul says, “Greet one another with a holy kiss” (2 Cor 13:12).
Why? Let’s think about what a kiss is!