Satan falling from heaven, as depicted by Gustave Dore in an illustration for John MIlton's "Paradise Lost". In his first homily, given on March 14th, Pope Francis cautioned the faithful that “he who does not pray to the Lord, prays to the devil.†“When we do not profess Jesus Christ,†he further insisted, “we profess the worldliness of the devil, a demonic worldliness.†Since that day, he has spoken often of the one he has called the “prince of this world,†and the “father of lies.†And, in the book, On Heaven and Earth, then-Cardinal Jorge Mario Bergoglio devoted...