The gospel shows us that our spiritual problem lies not only in failing to obey God, but also in relying on our obedience to make us fully acceptable to God, ourselves and others.
Every kind of character flaw comes from this natural impulse to be our own savior through our performance and achievement. On the one hand, proud and disdainful personalities come from basing your identity on your performance and thinking you are succeeding. But on the other hand, discouraged and self-loathing personalities also come from basing your identity on your performance and thinking you are failing.
Belief in the gospel is not just the way to enter the kingdom of God; it is the way to address every obstacle and grow in every aspect. The gospel is not just the “ABCs” but the “A-to-Z” of the Christian life.
The gospel is the way that anything is renewed and transformed by Christ — whether a heart, a relationship, a church, or a community. All our problems come from a lack of orientation to the gospel. Put positively, the gospel transforms our hearts, our thinking and our approach to absolutely everything.
Paul's Letter to the Galatians: Living in Line with the Truth of the Gospel
(Redeemer Presbyterian Church, 2003), 2