Excerpts from the Diary of St. Faustina:
Tell the world about My mercy and My love. The flames of mercy are burning me. I desire to pour them out upon human souls. Oh, what pain they cause Me when they do not want to accept them! My daughter, do whatever is within your power to spread devotion to My mercy. I will make up for what you lack. Tell aching mankind to snuggle close to My merciful Heart, and I will fill it -with peace.
Tell [all people], My daughter, that I am Love and Mercy itself. When a soul approaches Me with trust, I fill it with such an abundance of graces that it cannot contain them within itself, but radiates them to other souls. Souls who spread the honor of My mercy I shield through their entire lives as a tender mother her infant, and at the hour of death I will not be a Judge for them, but the Merciful Savior. At that last hour, a soul has nothing with which to defend itself except My mercy. Happy is the soul that during its lifetime immersed itself in the Fountain of Mercy, because justice will have no hold on it. Write this: Everything that exists is enclosed in the bowels of My mercy, more deeply than an infant in its mother’s womb.
1146 [Let] the greatest sinners place their trust in My mercy. They have the right before others to trust in the abyss of My mercy. My daughter, write about My mercy towards tormented souls. Souls that make an appeal to My mercy delight Me. To such souls I grant even more graces than they ask. I cannot punish even the greatest sinner if he makes an appeal to My compassion, but on the contrary, I justify him in My unfathomable and inscrutable mercy. Write: before I come as a just Judge, I first open wide the door of My mercy. He who refuses to pass through the door of My mercy must pass through the door of My justice…
1739 Write, My daughter, that I am mercy itself for the contrite soul. A soul’s greatest wretchedness does not enkindle Me with wrath; but rather, My Heart is moved towards it with great mercy.
January 28, 1938. Today the Lord said to me, My daughter, write down these words: All those souls who will glorify My mercy and spread its worship, encouraging others to trust in My mercy, will not experience terror at the hour of death. My mercy will shield them in that final battle…
1541 My daughter, encourage souls to say the chaplet which I have given to you. It pleases Me to grant everything they ask of Me by saying the chaplet. When sinners say it, I will fill their souls with peace, and the hour of their death will be a happy one.
Write this for the benefit of distressed souls: when a soul sees and realizes the gravity of its sins, when the whole abyss of the misery into which it immersed itself is displayed before its eyes, let it not despair, but with trust let it throw itself into the arms of My mercy, as a child into the arms of its beloved mother. These souls have a right of priority to My compassionate Heart, they have first access to My mercy. Tell them that no soul that has called upon My mercy has been disappointed or brought to shame. I delight particularly in a soul which has placed its trust in My goodness.
Write that 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.