“Paul’s claim, then, is this. His gospel, which was being called in question by the Judaizers and deserted by the Galatians, was neither an invention (as if his own brain had fabricated it), nor a tradition (as if the church had handed it down to him), but a revelation (for God had made it know to him).” —John Stott
“Grace is the free, unmerited favor of God, working powerfully on the mind and heart to change lives. There is no clearer example than Paul that salvation is by grace alone, not through our moral and religious performance. Though Paul’s sins were very deep, he was invited in.” —Tim Keller
“The gospel gives us a pair of spectacles through which we can review our own lives and see God preparing us and shaping us, even through our own failures and sins, to become vessels of His grace in the world.” —Tim Keller
“We are our best argument for the truth of the gospel when the change in our lives is so real that others see it and praise God because of us. Our lives are a powerful apologetic for the reality of the gospel when the light of our lives so shines that others see it and glorify our Father who is in heaven” (Matthew 5:16). —Todd Wilson