This third was taught during a vision that Sister Faustina had on September 13, 1935: "I saw an angel, the executor of God's wrath, reaching the earth. I began to implore God for the world with words I As I prayed thus, I saw that the angel was forsaken, and could no longer execute a just punishment."

The next day an inner voice taught him this prayer to the beads of the rosary.

When hardened sinners recite, I will fill their souls with tranquility, and their hour of death will be happy. Write to these troubled souls: when the recited The soul sees and recognizes the gravity of its sins, when the entire abyss of misery in which it has plunged, do not allow itself to despair, but allow itself to be thrown with confidence into the arms of my mercy, as a child in the arms of his dear mother. These souls have a right of way over my merciful heart. Say that no soul that has turned to my mercy has been disappointed or experienced."

"When they pray this rosary with the dying, I will remain between the Father and the dying soul, not as a just judge, but as a merciful savior."

The rosary also includes the contemplation of some passages in the life of Jesus and his mother Mary, which, according to the doctrine of the Catholic Church, are particularly relevant to the history of salvation and are called "mysteries".
The rosary has traditionally been divided into three equal parts, with fifty beads each and which, because they corresponded to the third part, were called rosary.