The Marian Fathers and, more importantly, the magisterium of the Catholic Church teach that there is no contradiction or competition between the message of the Sacred Heart as revealed to St. Margaret Mary Alacoque and the Divine Mercy message and devotion as revealed to St. Faustina Kowalska. Devout Catholics know this. After all, it’s the same Jesus who revealed His Sacred Heart to St. Margaret Mary Alacoque and, centuries later, revealed the Divine Mercy message and devotion to St. Faustina Kowalska. While each respective message has a distinct emphasis — for example, the message of the Sacred Heart focuses on reparation while the Divine Mercy Message and Devotion focuses on living a spirituality of trust in God’s unfathomable mercy — each message comes from the same source, the Divine Person of Jesus Christ.
There are lots and lots of other saints, blesseds, venerables, servants of God, and popes who loved the Sacred Heart and wrote about it. Each of the 366 days contains an invocation from the Litany of the Sacred Heart of Jesus.
To make Sacred Heart Gems a prayerful book you will find that each day contains an invocation from the Litany of the Sacred Heart of Jesus. The litany itself is found in its entirety at the end of the book, and you are highly encouraged to try and pray it every day as you make your way through the year. The book also includes prayers of consecration, reparation, and devotion to the Sacred Heart, as well the 12 Promises of the Sacred Heart of Jesus given to St. Margaret Mary Alacoque.
Endorsements:
Since the appearance of Jesus Christ to St. Margaret Mary Alacoque in the 17th century, and to St. Faustina Kowalska in the 20th century, devotion to the Sacred Heart of Jesus, the fount of Divine Mercy, has been part of the spirituality of generations of Roman Catholics. Father Calloway in his newest book, Sacred Heart Gems: Daily Wisdom on the Heart of Jesus, is true to its title. This “gem” of a book provides those devoted to the Sacred Heart of Jesus a daily treasury of theologically-solid spiritual aspirations. — Most Rev. Robert J. McManus, DD, STD, Bishop of Worcester, Massachusetts