'The gospel is not everything, yet in the final analysis it cannot be tamed into a simple formula with a number of points that must be recited to everyone, in every time and place. There is an irreducable complexity to the gospel. I do not mean that the gospel can't be presented simply and even very briefly. Paul himself does so on numerous occasions (e.g., Rom 10:9). The gospel is a clear and present word, but it is not a simplistic word...I want to resist the impulse, mainly among conservative evangelicals, toward creating a single, one-size fits all gospel presentation that should be used everywhere, that servesd as a test of orthodoxy.'
Timothy Keller, Center Church, p.39.