Richard B. Hays has written a thoughtful and insightful book entitled The Moral Vision of the New Testament. On p. 153 he gives the following summary of the story which ostensibly provides the unity of the NT. In my view, it is on target, and does what I have been asking my theology students to do: express the Christian worldview in 200 words or less. Hays does it in the following 89 (!)words:
The God of Israel, the creator of the world, has acted (astoundingly) to rescue a lost and broken world through the death and resurrection of Jesus; the full scope of that rescue is not yet apparent, but God has created a community of witnesses to this good news, the church. While awaiting the grand conclusion of the story, the church, empowered by the Holy Spirit, is called to reenact the loving obedience of Jesus Christ and thus to serve as a sign of God’s redemptive purposes for the world.