Devotion to Divine Mercy is conveyed through the Chaplet of Divine Mercy as Jesus imparted to Blessed Sister Faustina Kowalska when He relayed, as recorded in her diary "Divine Mercy in my soul", "Encourage souls to say the Chaplet which I have given you (1541)...Whoever will recite it will receive great mercy at the hour of death (687)...When they say this Chaplet in the presence of the dying, I will stand between My Father and the dying person, not as the just Judge but as the Merciful Savior (1541)...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 (687)...Through the Chaplet you will obtain everything, if what you ask for is compatible with My will. (1731).
Following is the formula for the Chaplet of Divine Mercy, prayed on the regular beads of the Rosary. It is most appropriate to pray it at 3 o'clock in the afternoon which is the "Hour of Great Mercy" as Jesus said to Blessed Faustina: At three o'clock, implore My Mercy,
especially for sinners; and, if only for a brief moment, immerse yourself in My Passion, particularly in My abandonment at the moment of agony. This is the Hour of Great Mercy...In this hour I will refuse nothing to the soul that makes a request of Me in virtue of My Passion.
(1320).
The Chaplet begins with the OUR FATHER, HAIL MARY, and the APOSTLES' CREED. Then on the large bead before each decade one recites:
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.
On each decade of the small beads, pray the following:
For the sake of His Sorrowful Passion,
have mercy on us and on the whole world.
At the end of the Chaplet recite three times the following prayer:
Holy God, Holy Mighty One, Holy Immortal One, have mercy on us and on the whole world.
Some conclude with the following prayer said three times also:
O Blood and Water which gushed forth from the Heart of Jesus as Font of Mercy for us, I trust in You!
It is recommended to offer each decade to the wounds of Christ, such as the first decade in reparation for the wound in HIs Right Hand; the second decade in reparation for the wound in His Left Hand, the third decade in reparation for the wounds in His Sacred Feet; the fourth decade in reparation for the wounds in His Head in which the Crown of Thorns crushed His Sacred Skull; and the fifth decade in reparation for the wound in His side in which Blood and Water gushed forth as a Font of Mercy for all generations.
The Novena to Divine Mercy, which Jesus asked Blessed Faustina to begin on Good Friday, 1937 is for nine days from Good Friday to Divine Mercy Sunday (the Sunday after Easter) which is the Feast of Divine Mercy. Jesus told her, By this Novena [of Chaplets and particular intention each day] I will grant every possible grace to souls. (796).