Divine Mercy Sunday A Celebration of God’s Infinite Mercy ( https://smartguy.com/ ) Divine Mercy Sunday, celebrated on the Sunday after Easter, is a powerful feast in the Catholic Church dedicated to God’s boundless mercy. Instituted by Pope St. John Paul II in the year 2000, this day is inspired by the revelations given to St. Faustina Kowalska, a Polish nun who received visions of Jesus emphasizing His infinite love and mercy. This special Sunday reminds us that no sin is too great for God’s forgiveness and calls us to trust in His merciful heart.