Dear Nigel
Nigel, I hope you feel free to respond. I have written this for you. But it is very clear to me that in order to tell/show/proclaim/etc Jesus, we have to tell people how to live. That's what Jesus did.
One of the articles I was asked to read for class recently sheds some light on this idea of reconstructing Jesus to fit our own image. However, this paper is aimed purely at academia and yet, exposes the same attitude that we have when approaching Jesus. To whet your tastes here is a portion of Jesus and Mohammad, Version 2.0 by Raymond Ibrahim:
"Instead, they [academics] rely on two dubious authorities: any scraps of other religious writings and their own conjectures. Obscure Gnostic documents, which were refuted, discredited, and abandoned nearly 2000 years ago, or were of such little importance that the early church was not even aware of their existence, become foundational. Through these fragmented parchments, academics can read into Jesus whatever they desire."
You will definitely want to read the entire article, especially if you are in a university setting. It would be good, then, to examine what "authorities" you rely on that trump the biblical portait of Jesus. An ever-exposing place to begin is your feelings or affections.