In October 1937, in Krakow, Jesus instructed Sister Faustina to especially venerate the hour of His death, which He called the hour of great mercy for the whole world.
“I remind you, My daughter, that as often as you hear the clock strike the third hour, immerse yourself completely in My mercy, adoring and glorifying it; invoke its omnipotence for the whole world, and particularly for poor sinners; for at that moment mercy was opened wide for every soul. (…) Try your best to make the Stations of the Cross in this hour, provided that your duties permit it; and if you are not able to make the Stations of the Cross, then at least step into the chapel for a moment and adore, in the Blessed Sacrament, My Heart, which is full of mercy; and should you be unable to step into the chapel, immerse yourself in prayer there where you happen to be, if only for a very brief instant. (Diary, 1572) Immerse yourself in My Passion, particularly in My abandonment at the moment of agony.” (Diary, 1320)
“In this hour you can obtain everything for yourself and for others for the asking; it was the hour of grace for the whole world – mercy triumphed over justice.” (Diary, 1572) “The flames of mercy are burning Me (…) and I want to pour them out upon these souls.” (Diary, 50) “Through the chaplet you will obtain everything, if what you ask for is compatible with My will.” (Diary, 1731)
In the Sanctuary of Divine Mercy, the Chaplet of Mercy, the Litany of Mercy, and the prayer of St. Faustina praising the Lord’s Mercy are recited daily at 15:00, asking Jesus to transform our hearts. Archbishop Gintaras Grušas emphasized that this is one of several prayers handed down and directly dictated from Heaven by the Lord Himself. When reciting the Chaplet of Mercy, one prays deeply contemplating Christ’s sacrifice, as if making present the events happening each time priests are offering the Holy Mass.
Saint Faustina in her “Diary” distinguishes the Chaplet of Mercy as a special spiritual aid for the dying: “Whoever will recite it will receive great mercy at the hour of death. Priests will recommend it to sinners as their last hope of salvation. Even if there were a sinner most hardened, if he were to recite this chaplet only once, he would receive grace from My infinite mercy.” (Diary, 687)