Dear Brothers and Sisters, 

After the Easter Season that ended last Sunday with Pentecost, the Liturgy has returned to "Ordinary Time". This does not mean, however, that Christians must be less any committed: indeed, having entered divine life through the sacraments, we are called daily to be open to the action of divine Grace, to progress in love of God and of neighbour. This Sunday of the Most Holy Trinity, in a certain sense sums up God's revelation which was brought about through the Paschal Mysteries: Christ's death and Resurrection, his Ascension to the right hand of the Father and the outpouring of the Holy Spirit. The human mind and language are inadequate to explain the relationship that exists between the Father, the Son and the Holy Spirit; yet the Fathers of the Church sought to illustrate the mystery of the Triune God by living it with deep faith in their own lives. 

The divine Trinity takes up his abode in us on the day of our Baptism: "I baptize you in the name of the Father, and of the Son, and of the Holy Spirit". Every time we sign ourselves with the sign of the Cross we remember God's name in which we were baptized. With regard to the sign of the Cross a theologian, Romano Guardini, remarked: "We do it before praying so that... we may put ourselves spiritually in order; focus thoughts, heart and will on God; after praying, so that what God has given us may remain within us.... It embraces the whole being, body and soul... and everything is consecrated in the name of the Triune God" (Lo spirito della liturgia. I santi segni, Brescia, 2000, pp. 125-126). 

The sign of the Cross and the name of the living God therefore contain the proclamation that generates faith and inspires prayer. And just as in the Gospel Jesus promises the Apostles that: "When the Spirit of truth comes, he will guide you into all the truth" (Jn 16: 13), so it happens in the Sunday Liturgy, from week to week, when priests dispense the bread of the Word and of the Eucharist. The Holy Curé d'Ars also reminded his faithful of this. "Who welcomed your soul", he asked, "at the beginning of your life? The priest. Who feeds your soul and gives it strength for its journey? The priest. Who will prepare it to appear before God, bathing it one last time in the blood of Jesus Christ? The priest, always the priest" (Letter inaugurating the Year for Priests). 

Dear friends, let us make our own the prayer of St Hilary of Poitiers: "Keep uncontaminated this upright faith that is in me and, until my last breath, grant me likewise this voice of my conscience, that I may be ever faithful to what I professed in my regeneration when I was baptized in the name of the Father, and of the Son, and of the Holy Spirit" (De Trinitate, XII, 57, CCL 62/A, 627). Invoking the Blessed Virgin Mary, the first creature to be fully inhabited by the Blessed Trinity, let us ask her protection and help to make good progress on our earthly pilgrimage.

[Pope Benedict, Angelus, 30 May 2010]