Take one maxim, mix with an obscure Butch Cassidy and the Sundance Kid reference and you get this.
The "Prayer" line comes from Sundance's (Robert Redford) first line in the movie. He's playing cards and one of the other players asks why he's doing so well. He takes a moment, thinks, and simply says, "Prayer" before dealing out the cards for another hand. The delivery is amazing and the line is just seems to be out of nowhere that I laugh or crack a smile every time I see it.
So there you have it.