[Aiken]

One guy says he regrets his crimes etc. and of course JC forgives him.
The other dude, however, remains sceptic and even a bit insulting towards JC's divine powers, and THEN a black raven appears, picking out the "evil" dudes eye. What does this mean?

About that scene... since I'm neither Mel nor film critic/analyser I can't say for sure, but if the punishment of infidels was the main message of the film then we should saw the severe punishment of Pharisees and those romans with scourges. But we won't. Then remember Judas: it was satan who drove him to suicide, not god. And black raven is typically demonic symbol, but not divine like pigeon in christianity.