Our blessed Lord famously put into the heart of Saint Faustina (extract from her Diary* 423):
‘O God, You are compassion itself for the greatest sinners who sincerely repent. The greater the sinner, the greater his right to God’s mercy.’ [Emphasis added.—Ed.]
And in Diary 723 (extract), it is our Lord speaking directly to Saint Faustina, to say:
‘The greater the sinner, the greater the right he has to My mercy.’
* Divine Mercy in My Soul by Saint Maria Faustina [Kowalska] of the Most Blessed Sacrament, OLM.