What else can you do?

The other day in chapel, our Chaplin for the day, Mr Chang, told us all the story of how is second child was born with only three toes on one of it's feet. I thought he would start saying how it didn't matter to him because he was gifted with his beautiful baby to call his child, but he actually said "why? why me? I always thought people who did bad would have these things happen to me. But I'm a good christian, I always follow the rules and I am devoted to God, yet this happened to me."

He said it was really difficult for his to get over this, and accept his child, and it's three toes, and love it for who it was.

Which got me thinking, how good do you have to be to be considered "A good person"?

Mr Chang does everything right, he devotes his time to teach children, he attends church regularly, he does charity work, he pretty much does everything that everyone else would classify as "good." Yet his child was not born, let's say, completely intact. I'm not saying he should abandon his child and that his child is no good, that would be horrible of me, but it doesn't make sense as to why everything in his life didn't turn out completely perfect, when he has done everything perfectly for everything and one else.

What is "good"? What defines "being good"? When parents tell their children to "be good" otherwise Santa won't bring them presents, how can they show they are "good"?

Is there a certain action that one can do, no matter who, that will then classify them as "good"? Or do you have to do many things to be apart of this category?

How can we define this?