“Left to myself, doing what comes naturally, I would fail. But the point of love is that it doesn’t. That is why love is a virtue. It is a language to be learned, a musical instrument to be practiced, a mountain to be climbed via some steep and tricky cliff paths but with the most amazing view from the top. It is one of those things that will last; one of the traits of character which provides a genuine anticipation of that complete humanness we are promised at the end. And it is one of the things, therefore, which can be anticipated in the present on the basis of the future goal, the telos, which is already given in Jesus Christ. It is part of the future which can be drawn down into the present.” ~ N.T. Wright, After You Believe: Why Christian Character Matters
In a 2010 interview with Trevin Wax, N.T. Wright explains this a little more:
“When you learn a language, your brain literally changes: new connections are made, new possibilities emerge, new habits of mind, tongue, and even sometimes body language emerge and are formed. The result is not, though, that you can speak it for the fun of it, but that you can communicate with people in that language, and perhaps even be able to go and live in the country where that language is spoken, and feel at home there.
This illustration helps to explain one part at least of the well known problem about how “what we do here and now” is umbilically connected to “who we will be in God’s new world”.
The point is that in the new heavens and new earth there is an entire way of life awaiting us, and we have the chance to learn, here and now, the character-skills we shall need for that new way of life – particularly the great three which Paul says will “abide” into God’s future, namely faith, hope and especially love. (All this depends of course on the Spirit, and on the transformative renewal of the mind which Paul speaks about in Romans 12:1-2.) …
In particular, the biblical vision of being human is that of being God’s Image-bearers: which means being like an angled mirror, reflecting God’s wise, stewardly love into his creation. The Christian vision is of Jesus as the true image and of Jesus’ followers, shaped by his Spirit, being transformed “into the same image” (2 Cor. 3.18). Thus being truly Christian and being truly human ought to come to the same thing.”