Chapter 14 of Tim Keller's book "The Dance of God"

I believe that Christianity makes the most sense of our individual life stories and out of what we see in the world's history. It is time to draw together the various threads of the narrative we have been examining and view the story line of Christianity as a whole. The Bible has often been summed up as a drama in four acts - creation, fall, redemption and restoration.

1. Christianity, alone among the world faiths, teaches that God is triune. God is one being who exists eternally in three persons: Father, Son and Holy Spirit. The Trinity means that God is in essence, relational.
2. Ultimate reality is a community of persons who know and love one another. That is what the universe, God, history and life is all about. If you favour money, power and accomplishment over human relationships, you will dash yourself on the rock of reality. The world was made by a God who is a community of persons who have loved each other for all eternity. You were made for mutually self-giving, other-directed love. Self-centredness destroys the fabric of what God has made.
3. The ultimate reason that God created the earth and its inhabitants is not to remedy some lack in God, but to extend that perfect internal communication of the triune God's goodness and love. We were made to centre our lives upon him, to make the purpose and passion of our lives knowing, serving, delighting and resembling him.
4. However, human have failed as we became stationary, self-centred. Self-centredness creates psychological alienation. Nothing makes us more miserable than self-absorption, the endless, unsmiling concentration on our needs, wants, treatment, ego and record. In addition, self-centredness leads to social disintegration. It is at the root of the breakdown in relationships between nations, races and classes, and individuals. Finally, humanity's refusal to serve God has led to our alienation from the natural world as well.
5. If the beauty of what Jesus did moves you, that is the first step toward getting out of your own self-centredness and fear into a trust relationship with him. When Jesus dies for you he was, as it were, inviting you into the dance. He invites you to begin centring everything in your life on him, even as he has given himself to you. You can make him the new centre of your life and stop trying to be your own Saviour and Lord.
6. The purpose of Jesus' coming is to put the whole world right, to renew it and restore the creation, not to escape it. The story of the Gospel makes sense of moral obligation and our belief in the reality of justice, so Christians do restorative and redistributive justice wherever they can. The story of the Gospel makes sense of our profoundly relational character, so Christians work sacrificially to strengthen human communities around them as well as the Christian community, the church. The Gospel makes sense of our delight in the presence of beauty, so Christians become stewards of the material world, from those who cultivate the natural creation through science and gardening to those who give themselves to artistic endeavours, all knowing why these things are necessary for human flourishing. True Christians are then true 'revolutionaries' who work for justice and truth, and we labour in expectation of a perfect world in which:

"He will wipe every tear from their eyes. There will be no more death or mourning or crying or pain, for the old order of things is passed away" (Revelation 21:4)

Based on: Tim Keller (2008), The Reason for God, p.213-226