Punk's increasingly mad savior character from Straight Edge Society and The Nexus has a lot of creepy religious undertones; real-life Punk is notoriously anti-religious. His response to Teddy Hart saying God made him able to jump off a thirty foot cage?
"There is no god, and that cage wasn't thirty feet."
Which itself was a nod taken Up to Eleven at a line Punk said in the promo that turned him heel and started the original Summer of Punk.
Alternatively, it could be a Development Gag alluding to when he got his head shaved by Rey Mysterio. Punk's original concept for the mask (before Vince McMahon made him change it), included devil horns.
Also, he's a fan of many aspects of pop culture, as he often quotes other media. A good example would be him comparing Laurinaitis to Lumbergh from Office Space without any of the comedy and blasting Lauranitis for being so out of touch.