You see a trolley is running out of control along railway tracks and is about to kill five people hedged in by high banks on the track ahead. You have the option of pulling a lever to re-route the trolley to a side-track but there is another person similarly trapped there and who will die of you do.
Is it permissible to pull the lever so the trolley kills the one but saves the five? Most people say it is.
Then it occurred to me that isn’t this a bit like what the Christian gospel is about? God sees many people doomed to die, so he flicks a switch so that only one dies instead. (Okay, there are more theological trappings to this: those five have to repent or believe or they’ll find themselves in the same situation again and then God will decide not to pull the lever and they’ll all die anyway!)
So far, apart from the theological monstrosities, does not God’s great act of salvation appear to be little more than a perfectly natural human act in accordance with perfectly natural human ethics?
The mind-game gets more interesting if we introduce some variations. What about tossing a very heavy bulk of a man onto the track to stop the trolley if there is no lever to save the five; or what about pulling a lever that will drop the heavy bulk of a man on to the track so you don’t actually push him, and so forth.
Then there are other types of variation to introduce. One of these is having the solitary person on the side track being a close friend or relative of yours, perhaps your child? What if the five people are all staunch supporters of [fill in your most hated politician/party here]?
Then try the variants of scale. What if not just five people were doomed but an entire city by something accordingly matching the trolley?
If you saw the entire population on earth was doomed and the only way to save them was to allow your child to die, what would you do? It would be horribly painful but I suspect some, even many, people would even sacrifice their child.
Would God, then, have been any better than many mere mortals?
(Come to think of it, how many mere mortals, lacking awe and mystery, would then doom that entire population in a re-run if they failed to believe God had not lost his child after all but had magically brought him back to life?)