To be gospel-centered is to be Jesus-centered. By Jesus we mean the New Covenant One who fulfills the promise and foreshadowing of the Old Covenant. As revealed in the New Covenant he is both Son of David and Son of God; both the Suffering Servant and the Glorious King.
Gospel-centered means that all of life and ministry finds its meaning and its joy in the promise and fulfillment which culiminates in Jesus Christ.
“The core of the gospel, the historical facts of what God did in Jesus Christ, is often downgraded today in favor of a more mystical emphasis on the private spiritual experience of the individual. Whereas faith in the gospel is essentially acceptance of and commitment to the declaration that God acted in Christ some two thousand years ago on our behalf, saving faith is often portrayed nowadays more as trust in what God is doing in us now. Biblical ideas such as “the forgiveness of sins” or “salvation” are interpreted as primarily describing a Christian’s personal, subjective experience.
But when we allow the whole Bible-Old and New Testaments-to speak to us, we find that those subjective aspects of the Christian life, which are undoubtedly important-the new birth, faith, and sanctification-are the fruits of the gospel. The gospel, while still relating to individual people at their point of need, is rooted and grounded in the history of redemption. It is the good news about Jesus, before it can become good news for sinful men and women. Indeed, it is only as the objective (redemptive-historical) facts are grasped that the subjective experience of the individual Christian can be understood.” http://tinyurl.com/2b7tddj