If its hard to preach your faith or understand your own ideals because of something like this or Cannoli's take on it you might want to reconsider that faith or ideal.
I'm not much for Christianity and you know I don't believe it myself but if you do shouldn't it be pretty simple to stand up and say "Love your neighbor, do good onto him, and forgive him his trespasses for we are all imperfect creatures" Its one thing to have trouble doing it yourself but you're a minister, it shouldn't be hard for you to believe its right and get up and say its what we ought to do. Its one thing to have trouble forgiving someone yourself but a completely different one to lose faith in the ideal of gods forgiveness... Especially over something like the words in Cannoli's post which while aggressive in tone and style are certainly not worthy of condemnation in content.