"First say one 'Our Father', 'Hail Mary', and 'I believe'. Then on the large beads say the following words:
'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 the smaller beads you are to say the following words:
'For the sake of His sorrowful Passion have mercy on us and on the whole world.'
In conclusion you are to say these words three times:
'Holy God, Holy Mighty One, Holy Immortal One, have mercy on us and on the whole world'.
Jesus said later to Sister Faustina:
"Say unceasingly this chaplet that I have taught you. Anyone who says it will receive great Mercy at the hour of death. Priests
will recommend it to sinners as the last hope. Even the most hardened sinner, if he recites this Chaplet even once, will receive grace from My Infinite Mercy. I want the whole world to know My Infinite Mercy. I want to give unimaginable graces to those who trust in My Mercy…."
"….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".