What is a Christian?

On a number of occasions, over the years, I have preached on the question: "What is a Christian?"  I have come at the question from different angles, and provided a number of answers to it.  However, someone from my Facebook contacts placed the following on their page and, as well as sharing it on that particular social medium, I want to share it here.  I wish that I had read it a long time ago - and if I preach on that same subject in the future, I will undoubtedly make reference to this.  Indeed, I may well quote it in full!

I hope that many who read it 'get the message'!