The gospel is normative for Christian faith, affects everything we say and do, and is the greatest need for both believers and non-believers because it brings us reconciled and renewed fellowship with God, eternal life and union with Jesus Christ, and the transforming joy, teaching, and pwoer through the Holy Spirit (I Timothy 1:11; II Corinthians 5:20; Colossians 3:4 ; Galatians 5:25 ). Tim Keller writes: "The gospel is something that has been done for us and that we must respond to. The gospel is what we must believe to have our relationship with God put right and to be saved." The gospel changes our lives to be like Christ's life so that our hearts and minds are transformed and molded into his will and purpose for us (John 3:3 ).
Unfortunately and tragically, "the reality of present-day Christendom is that most professing Christians actually know very little of the gospel, let alone understand its implications for their day-to-day lives. My perception is that most of them know just enough gospel to get inside the door of the kingdom. They know nothing of the unsearchable riches of Christ" (Jerry Bridges). What all persons need to know is that the gospel is about Jesus and is richer and greater than anything anyone can possibly imagine and has the power and energy to change our minds and hearts, and ultimately our lives. Tim Keller concurs: "The gospel transforms our hearts and thinking and approaches to absolutely everything."