See this online ebook:
- Eucharistic Meditations of the Curé d’Ars, by St. John Baptist Mary Vianney (Carmelite Publications, 1961). Available in pdf format (here) at through this archive of the Irish Province of the Order of Carmelites; and also available at Yumpu.
On the Feast of Pope St. Marcellus I in the Extraordinary Form of the Roman Rite. From the text:
“How many there are who have the temerity to come to the Holy Table with sins unconfessed or disguised in Confession. How many have not the contrition that the good God demands of them, and keep a secret will to commit sin again and not to make every effort to correct themselves… If ever you have been in these dispositions when going to Holy Communion, you have been guilty of sacrilege…
“The unworthy communicant is a traitor and a hypocrite… The unworthy communicant is an ungrateful person… The unworthy communicant is a parricide.”