"Is it not written that the Iron shall lie down with the Lamp?" First, I would not feel comfortable confessing anything to something with a microphone. Second, don't you have to believe in God to be a Priest? How can a robot have faith? Can you program faith? I mean, the Cylons did and you see how well THAT worked out for us. Does his upgrades come on a crucifix-shaped USB drive? And then you have to factor in all the contradictions and so on, those break robots! We'd have a Hal 9000 situation on our hands. Can he get instructions from the Cloud? What if God Himself took over the robot, Johnny Five Is Alive With The Spirit Of The Lord. Robot Jesus! Like Chappie meets The Last Temptation Of Christ. That won't be controversial at all!

I'd merge two stories the Miracle of Marcelino Pan y Vino (1955) and Pinocchio where you have Father Rob who longs to be a human priest. Then, when he's human he finds it out what he truly mean to give his life for his sheep. We'll sell it to ETWN.