When I attended college I had a speech professor who came in one morning and had the class take out a piece of paper. “On the paper,” he said, “write out five things you cannot do using the statement, ’I can’t do…’” I wrote out those things. One was, “I can’t cook.” He then instructed us to replace the word “can’t” with “won’t”. My statement then read, “I won’t cook.” Changes the meaning, doesn’t it. Forgiveness is an act of will. Those who “can’t” just refuse to forgive.