The gospel is not about something we do but about what has been done for us, and yet the gospel results in a whole new way of life. This grace and the good deeds that result must be both distinguished and connected. The gospel, its results, and its implications must be carefully related to each other — neither confused nor separated. One of Martin Luther’s dicta was that we are saved by faith alone but not by a faith that remains alone. His point is that true gospel belief will always and necessarily lead to good works, but salvation in no way comes through or because of good works. Faith and works must never be confused for one another, nor may they be separated (Eph 2: 8–10; Jas 2: 14, 17–18, 20, 22, 24, 26).
– Tim Keller