Sinfully, I am often taken off guard by passages in Paul that warn of real, earthly, temporal consequences of sin. For example, what exactly is meant by 1 Cor. 11:30? What exactly is the "sin behind the sin" of wrongly (without judging the body) eating the Lord's Supper? Is it just simply disobedience, which is, of course, sufficient? Those Corinthians who had died and those "weak and ill" folks who had taken the Supper wrongly were obviously being judged by God, but, for the sake of inquiry, what harm are they causing by just eating bread and drinking wine when they're not supposed to? Why did God choose this sin to punish in a special, more direct and temporal way?
I'm going to try to figure this out some, then I'll be back.