1. "Confitemini Domino quoniam bonus, quoniam in saeculum misericordia eius"; "Give thanks to the Lord for he is good; his steadfast love endures for ever" (Ps 118: 1). So the Church sings on the Octave of Easter, as if receiving from Christ's lips these words of the Psalm; from the lips of the risen Christ, who bears the great message of divine mercy and entrusts its ministry to the Apostles in the Upper Room: "Peace be with you. As the Father has sent me, even so I send you.... Receive the Holy Spirit. If you forgive the sins of any, they are forgiven; if you retain the sins of any, they are retained" (Jn 20: 21?]23).
Before speaking these words, Jesus shows His hands and His side. He points, that is, to the wounds of the Passion, especially the wound in His heart, the source from which flows the great wave of mercy poured out on humanity. From that heart Sr. Faustina Kowalska, the blessed whom from now on we will call a saint, will see two rays of light shining from that heart and illuminating the world: "The two rays," Jesus himself explained to her one day, "represent blood and water" (Diary, Libreria Editrice Vaticana, 299).
2. Blood and water! We immediately think of the testimony given by the Evangelist John, who, when a solider on Calvary pierced Christ's side with his spear, sees blood and water flowing from it (cf. Jn 19: 34). Moreover, if the blood recalls the sacrifice of the Cross and the gift of the Eucharist, the water, in Johannine symbolism, represents not only Baptism but also the gift of the Holy Spirit (cf. Jn 3: 5; 4: 14; 7: 37?]39).
Divine Mercy reaches human beings through the heart of Christ crucified: "My daughter, say that I am love and mercy personified," Jesus will ask Sr. Faustina (Diary, 1074). Christ pours out this mercy on humanity though the sending of the Spirit who, in the Trinity, is the Person?]Love. And is not mercy love's "second name" (cf. Dives in Misericordia, n. 7), understood in its deepest and most tender aspect, in its ability to take upon itself the burden of any need and, especially, in its immense capacity for forgiveness?
Today my joy is truly great in presenting the life and witness of Sr. Faustina Kowalska to the whole Church as a gift of God for our time. By Divine Providence, the life of this humble daughter of Poland was completely linked with the history of the 20th century, the century we have just left behind. In fact, it was between the First and Second World Wars that Christ entrusted His message of mercy to her. Those who remember, who were witnesses and participants in the events of those years and the horrible sufferings they caused for millions of people, know well how necessary was the message of mercy.
Jesus told Sr. Faustina: "Humanity will not find peace until it turns trustfully to divine mercy" (Diary, 300). Through the work of the Polish religious, this message has become linked for ever to the 20th century, the last of the second millennium and the bridge to the third. It is not a new message but can be considered a gift of special enlightenment that helps us to relive the Gospel of Easter more intensely, to offer it as a ray of light to the men and women of our time.
3. What will the years ahead bring us? What will man's future on earth be like? We are not given to know. However, it is certain that in addition to new progress there will unfortunately be no lack of painful experiences. But the light of divine mercy, which the Lord in a way wished to return to the world through Sr. Faustina's charism, will illuminate the way for the men and women of the third millennium.
However, as the Apostles once did, today too humanity must welcome into the upper room of history the risen Christ, who shows the wounds of his Crucifixion and repeats: Peace be with you! Humanity must let itself be touched and pervaded by the Spirit given to it by the risen Christ. It is the Spirit who heals the wounds of the heart, pulls down the barriers that separate us from God and divide us from one another, and at the same time, restores the joy of the Father's love and of fraternal unity.
4. It is important then that we accept the whole message that comes to us from the word of God on this Second Sunday of Easter, which from now on throughout the Church will be called "Divine Mercy Sunday." In the various readings, the liturgy seems to indicate the path of mercy which, while re-establishing the relationship of each person with God, also creates new relations of fraternal solidarity among human beings. Christ has taught us that "man not only receives and experiences the mercy of God, but is also called" to practice mercy towards others: "Blessed are the merciful, for they shall obtain mercy" (Mt 5: 7) (Dives en Misericordia, n. 14). He also showed us the many paths of mercy, which not only forgives sins but reaches out to all human needs. Jesus bent over every kind of human poverty, material and spiritual.
His message of mercy continues to reach us through His hands held out to suffering man. This is how Sr. Faustina saw Him and proclaimed Him to people on all the continents when, hidden in her convent at £agiewniki in Krakow, she made her life a hymn to mercy: Misericordias Domini in aeternum cantabo.
5. Sr. Faustina's canonization has a particular eloquence: by this act I intend today to pass this message on to the new millennium. I pass it on to all people, so that they will learn to know ever better the true face of God and the true face of their brethren.
In fact, love of God and love of one's brothers and sisters are inseparable, as the First Letter of John has reminded us: "By this we know that we love the children of God, when we love God and obey his commandments" (5: 2). Here the Apostle reminds us of the truth of love, showing us its measure and criterion in the observance of the commandments.