Between 1931 and 1938, a young nun named Sister Maria Faustina claimed to have experienced a series of visions, messages and conversations in which our Lord Jesus asked her to establish a devotion to his Divine Mercy.
Helen Kowalska, who became Sister Maria Faustina of the Congregation of the Sisters of Our Lady of the Most Blessed Sacrament in Warsaw, was born in 1905 near Lodz, Poland. When she was 20 she entered the convent and lived there the rest of her life. She began receiving messages and visions of Jesus soon thereafter.
Faustina documented all these episodes — over 1,800 entries — in her diary that today is a classic book called “Divine Mercy in My Soul.” She was a prophet and a mystic, graced with many supernatural gifts. Her deep love of the Eucharist and love of the Blessed Mother were likely among the reasons Jesus chose her to share his message of mercy.
The messages imparted to Faustina were received during an era of growing unrest throughout Europe: Amid economic disaster, Hitler and the Nazis were taking over Germany, as were Mussolini and the fascists in Italy. The first concentration camps were built, and the German anti-Jewish Nuremberg Laws were passed. Control of most European countries was increasingly in the hands of tyrants, which led to the horrors of World War II.
All this came on the heels of World War I, which had ended less than 25 years earlier. Jesus told Faustina that “mankind will not have peace until it turns with trust to my mercy” (Diary, No. 300).
The diary reflects that to attain the divine mercy of Jesus, mankind needs a trustful relationship with Our Savior. Jesus tells Faustina repeatedly that we can depend on his love and his mercy if only we turn to him, repent of our sins and trust in him: “Sooner would heaven and earth turn into nothingness than would my mercy not embrace a trusting soul” (Diary, No. 1777).
He also repeatedly told her that he wanted her to establish a feast of mercy and hold that celebration on the first Sunday after Easter. He said: “My daughter, tell the whole world about my inconceivable mercy. I desire that the feast of mercy be a refuge and shelter for all souls, and especially poor sinners. On that day the very depths of my tender mercy are open. I pour out a whole ocean of graces upon those souls who approach the fount of my mercy. The soul that will go to confession and receive holy Communion shall obtain complete forgiveness of sins and punishment. … My desire that it be solemnly celebrated on the first Sunday after Easter” (Diary, No. 699).
The mercy of Christ that we receive is then shared with our neighbor; as he is merciful to us, we are to be merciful to them.
After St. Faustina died in 1938, the original diary was rewritten by members of Faustina’s order and, based on the contents of that version, both the diary and proposed devotion in 1959 were banned by the Vatican. It was 19 years later that a review of the original documents of Sister Faustina led to the lifting of the ban.
On April 30, 2000, Faustina would be the first person canonized in the new millennia. Pope St. John Paul II (r. 1978-2005) not only elevated Sister Faustina Kowalska to the altar of sainthood, but he said during his canonization homily that “from now on throughout the church (the second Sunday of Easter) will be called Divine Mercy Sunday.” Certain religious groups are advocating for St. Faustina to be named a doctor of the church.
When we attend a Divine Mercy celebration on that special Sunday, we are touched by the beautiful prayers that Jesus gave to Faustina: “Eternal Father, I offer You the Body and Blood, Soul and Divinity of Your dearly beloved Son, Our Lord Jesus Christ, in atonement for our sins and those of the whole world.” And then, “For the sake of his sorrowful passion have mercy on us and on the whole world. Holy God, Holy Mighty One, Holy Immortal One, have mercy on us and on the whole world” (Diary, No. 476).
Read More Saints
Copyright © 2025 OSV News
