Basically, what it boils down to is this: Suffering makes us holy. Whenever we're presented with injustice, all we need to do is simply endure it. If we are asked what we can do to make things better, all we need to do is meekly suggest that yes, what's happening is unjust and wrong - and yet it is emphatically not our fault, so it's best to just let it keep happening to us.
This movie presents what I suppose is a deeply Republican brand of Christianity, in which we are all powerless and must always show fealty to Rome. No matter what happens, God has cast us out and left us to suffer the privations and depradations inflicted on us by wordly agents. You know, like liberals.
Ultimately, I'm horrified by this movie. I'm not a Christian, but my Christian upbringing always taught us that we, like Christ, have God's strength inside of us to effect change, to do what's right, to fight injustice, and to spread God's love to all of our fellow creatures.
However, all this movie seems to tell me is that yeah, life sucks, so shut up, take it up the ass, quit complaining, and don't worry about it so much, 'cuz you're gonna get lots of virgins in the afterlife or something. You'll be persecuted by some crazy Jews for no reason that you can discern; next, some Romans are gonna beat the crap out of you, and none of it means anything at all, so just stand there grimacing through your latex bodysuit and take it like the worthless, miserable wretch you are.
Just don't try to change anything.