S'funny, I am a Christian and I read that passage a little different to what it's being thrown about as here.
"Jesus answered, 'I am the way and the truth and the life. No one comes to the Father except through me."
Taken out of context we're looking at a pretty cut and dried statement, believe in Christ and you recieve the Grace of God. All fairly simple so far, except that belief in the sacrifice of Jesus covers that fairly neatly. Through that our sins are washed away and we can have a relationship with God once more. I.e. through Jesus we can get to the Father. As for the way and the life parts, again fairly simple (at least to my mind) Jesus led as perfect a life as it was possible to lead, he fed the hungry, clothed the poor, healed the sick, ultimately gave his life for folks he'd never know and never meet and did it all for God. If anyone emulates that, in any way, if anyone can even meet a tenth of that then they are leading a life that's going to be okay with God. Just cut down on the bad shit and do our level best not to do it, we'll be fine. We're human so mistakes are allowed. God's kinda awesome like that.
OT: Awesome work, Bob, well written and researched. Thoroughly enjoyable read.