Of the many promises Our Lord Jesus Christ did reveal to Saint Margaret Mary Alacoque in favor of souls devoted to His Sacred Heart the principal ones are as follows:
- I will give them all the graces necessary for their state of life.
- I will give peace in their families.
- I will console them in all their troubles.
- I will be their refuge in life and especially in death.
- I will abundantly bless all their undertakings.
- Sinners shall find in my Heart the source and infinite ocean of mercy.
- Tepid souls shall become fervent.
- Fervent souls shall rise speedily to great perfection.
- I will bless those places wherein the image of My Sacred Heart shall be exposed and venerated.
- I will give to priests the power to touch the most hardened hearts.
- Persons who propagate this devotion shall have their names eternally written in my Heart.
- In the excess of the mercy of my Heart, I promise you that my all powerful love will grant to all those who will receive Communion on the First Fridays, for nine consecutive months, the grace of final repentance: they will not die in my displeasure, nor without receiving the sacraments; and my Heart will be their secure refuge in that last hour.
