Tim Keller, Walking with God through Pain and Suffering

We have been arguing that every culture gives its members a story about what life is all about, and the story of late modern culture — that life is about individual freedom and happiness — has no place for suffering. But the Christian story, as we will see, is utterly different. Suffering is actually at the heart of the Christian story. Suffering is the result of our turn away from God, and therefore it was the way through which God himself in Jesus Christ came and rescued us for himself. And now it is how we suffer that comprises one of the main ways we become great and Christ-like, holy and happy, and a crucial way we show the world the love and glory of our Savior.

– Tim Keller