The devotion of God’s mercy and the feast celebrated on the first Sunday after Easter were greatly desired by Jesus, who indicated them to St. Faustina Kowalska as a way to draw from them very great spiritual graces, where the channels of His own mercy are opened.

Jesus appeared to her many times during her life and ordered her to write a diary with all the revelations that he would entrust to her, to make known to everyone the immeasurable mercy of God and to spread his worship.

A message of God’s mercy

Jesus explained how His mercy is endless and immeasurable, that He had a great desire for the world to know Him and to be able to experience His graces:


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“Every time you want to give Me joy, tell the world about My great and immeasurable Mercy.”

“The greatest sinners place their hope in My mercy. They, before others, have the right to trust in the abyss of My Mercy. My daughter, write about My Mercy for suffering souls. Souls who turn to My Mercy bring me great joy. I give these souls more grace than they ask.

Even if someone was the greatest sinner, I cannot punish him if he appeals to my pity, but I justify him in my unfathomable and impenetrable mercy.”

Our Lady also appeared to Sister Faustina several times, entrusting her with some personal messages, including a prophetic message about the end of time and the importance for people of reaching out for God’s mercy. Mary will also reveal to her that she is the Mother of Mercy, accompanying her step by step in her mission.

Maria in Sister Faustina Kowalska’s Diary

“Suddenly I saw the Holy Virgin with the Child Jesus and Saint Joseph, who was behind Our Lady. The Holy Mother said to me: “Here is the most precious treasure.”

“Suddenly I saw Our Lady with Baby Jesus, Baby Jesus was holding Our Lady’s hand. In a moment, Little Jesus ran joyfully to the middle of the altar, and Our Lady said to me: “Look with how calmly I hand Jesus into his hands, so you too must trust your soul and be like a little girl before him. After such words, my soul was filled with some mysterious confidence.”

“While later, during Vespers, I continued to examine this kind of mixture of suffering and grace, I suddenly heard the voice of Our Lady: “Know, my daughter, that although I am raised to the dignity of the Mother of God, seven painful swords pierced my heart. Do nothing in your defense; you bear everything with humility. God himself will defend you.”

“It is impossible to please God without doing his holy will. “My daughter, I strongly recommend that you faithfully carry out all God’s wishes, because that is what is pleasing in His eyes. I fervently want you to excel in this, that is, in this faithfulness, in fulfilling the will of God. Put God’s will before all sacrifices and burnt offerings.”

“Suddenly I saw the Blessed Virgin, indescribably beautiful, approaching me from the altar to My kneeling. She held me close and said these words to me: “I am your Mother by God’s infinite mercy.” My dearest soul is that which faithfully carries out the will of God.” She made me understand that I faithfully carried out all God’s wishes and that I found grace in His eyes for that. “Be brave; do not be afraid of deceptive obstacles, but carefully consider the Passion of My Son and in this way you will win.”

A prophecy about the end times and God’s mercy

Our Lady outlined a scenario of great importance to Sister Faustina: will a person adhere to the will of God, who wants to give everyone His mercy, as the last hope of salvation?

“Suddenly I saw Our Lady who said to me: “Oh, how dear to God is a soul that faithfully follows the inspiration of His grace! I gave the world a Savior and you must tell the world about His great mercy and prepare the world for His second coming.

He will not come as a merciful Savior, but as a Righteous Judge. Oh, that day will be terrible! The day of justice has been established (see Acts 17:31), the day of God’s wrath before which the angels tremble. Speak to the souls of this great mercy, as long as the time of mercy lasts.

If you remain silent now, on that terrible day you will have to answer for a large number of souls. Fear nothing; be faithful to the end. I accompany you with my tenderness.”