In revealing to us the face of the Father, Jesus breaks open eternity for mankind, making a relationship with the Father through the Son in the Holy Spirit a real possibility for each and every one of us. The Trinity is as much the main message of the Good News as is the cross and Resurrection.
This self-giving, life-giving love is the heart of the Blessed Trinity and therefore, it is the heart of our Christian faith and morality.
The Still-Point of the Turning World
The Incarnation of the Son of God changes everything, especially the way we speak about morality. Jesus Christ, fully God and fully man, is the divine presence in the world. He is the center, the constant, upon which all activity, both divine and human, turn.
Because God became man in Jesus Christ, he has become for humanity both the Source of moral goodness and the exemplar of that goodness. He is life's Source and Definition. There is nothing possible to add when fullness is already present.
What is Christian morality, then? It is the imitation of the virtues of Christ.
Me. Yesterday.
I hate being fat. I've been fat for most of my life, pretty much since the third grade when I found out that I had aesthma. I let that little factoid become an evolving excuse why I couldn't, just couldn't! do this or that active thing.
The lazier and fatter I got, the more I relied on my own excuses why I should not have to do active, fun things with active, fun people.
Excuses only last for so long. Sometimes they do not work at all. And when that happens, now completely out of shape, I would be forced into situations where I had to be active, fun, and athletic. And of course I was just embarrassed by my inability and failure. No one wants to be embarrassed like that, so I withdrew further.
Embarrassment turned into fears, all sorts of fears, especially that common fear of failure.
And I liked those fears, because they kept me from those things that I thought were demanding far too much from me. I was not running from God, I just was running from... running. I feared demanding things because I did not know if I truly had what it takes.