Here's a 2010 equalitopia article
where the newly elected Pope Francis (Cardinal Jorge Bergoglio) describes gay marriage as being the work of the devil:
Argentina’s highest-ranking Catholic prelate has warned that the country’s gay marriage bill is a “machination” of the devil, reports Pink News.
Cardinal Jorge Bergoglio has called on priests in Buenos Aires, where he is archbishop, to protest against the bill, which is progressing through Argentina’s parliament.
In a letter to the monasteries of Buenos Aires, he wrote: “Let’s not be naive, we’re not talking about a simple political battle; it is a destructive pretension against the plan of God .. We are not talking about a mere bill, but rather a machination of the Father of Lies that seeks to confuse and deceive the children of God.”