Peter Joseph Arnoudt (or Aernoudt, Arnold) (born at Moere, Belgium, 17 May 1811; died at Cincinnati, 29 July 1865) was a Belgian Jesuit writer on devotional subjects.
After the usual course of Jesuit training, he was appointed to teach in the colleges in the Missouri province of the Society.
It was written to promote devotion to the Sacred Heart of Jesus, in fulfilment of a vow he had made in a time of illness.
[1][2] Translations were also made into French, German, Spanish, Portuguese, Italian, Flemish, and Hungarian.
The French translation, published at Besançon, passed through eighteen editions between the years 1864 to 1887.