Soon after same-sex marriage became law in Illinois, Bishop Thomas Paprocki of the Catholic Diocese of Springfield offered a highly symbolic liturgical response -- an exorcism rite.

"Our prayer service today and my words are not meant to demonize anyone, but are intended to call attention to the diabolical influences of the devil that have penetrated our culture," he said, in his sermon. "These demonic influences are not readily apparent to the undiscerning eye. … The deception of the Devil in same-sex marriage may be understood by recalling the words of Pope Francis when he faced a similar situation as Archbishop of Buenos Aires in 2010."

So Paprocki quoted then-Cardinal Jorge Mario Bergoglio, facing the redefinition of civil marriage in Argentina: "Let us not be naive: it is not a simple political struggle; it is an intention (which is) destructive of the plan of God. It is not a mere legislative project … but rather a 'move' of the father of lies who wishes to confuse and deceive the children of God."

"Father of lies" is a biblical reference to Satan.

When it comes to gay-rights issues, this is probably not the first Pope Francis quotation that springs into the minds of most people following the news in preparation for his Sept. 23-27 visit to the media corridor between Washington, D.C., and New York City. The papal visit is linked to the World Meeting of Families in Philadelphia.

An Internet search-engine query for "Francis" and the precise phrase "Who am I to judge?" yielded nearly 200,000 hits, including 4,540 in current news articles.