"But the fruit of the Spirit is love, joy, peace, longsuffering, kindness, self-control."
After thinking about moral premise for a bit, I decided that it has much less to do with the theme of a story, and more to do with the characters. Now I haven't taken the class or read any books on this, just Kern's post, so this is my own interpretation.
Part of moral premise is the virtue that absolutely defines your characters. Now, in reality many people are a little blurry when it comes to their own morality. Not to say we don't feel strongly about certain, and often different, morals but what I'm saying is that few of us are guided by one specific trait.
I think our characters should be though, and this is one of the things that will drive the story.
In my opinion, a main character should have a defining virtue. Does she thirst for justice in everything? Is he gentle to all? The list above is a great tool to pick out a single virtue to absolutely define and drive your character.
So, what virtue defines your main character? Have you ever met someone who seemed to be the epitome of patience? Do you know someone who always seems to have a kind word? How can we use a single virtue to create a rounded character and influence every aspect of the MC's life?