God’s promise to Abraham was a gift of grace, not something earned through effort. When the law came centuries later, it didn’t cancel or replace that promise—it revealed just how much we need it. The law exposed our sin and humbled us, like a stern tutor preparing us for the arrival of Christ. But now that Christ has come, we are no longer under the law—we are adopted as God’s children through faith, fully loved and fully accepted. In Jesus, we are united, made heirs of a rich inheritance that includes not only forgiveness and the Spirit now, but the whole world to come. From beginning to end, our standing with God rests not on what we do, but on what Christ has done.

In Galatians 3:1–6, Paul confronts the Galatians for drifting from the gospel of grace, reminding them that they received the Spirit not by works but by “hearing with faith.” This sermon emphasizes that the Christian life—both its beginning and its continuation—is entirely dependent on God’s grace, received through faith. Good works are not the cause of salvation, but the result of it. Christians must resist the temptation to rely on self-effort and instead daily return to the gospel, trusting in the Spirit’s power for sanctification.

Paul confronts Peter for acting in a way that misrepresents the gospel, reminding us that justification is by faith in Christ alone—not by works or law-keeping. When we misuse God’s law as a means of righteousness, we not only mislead others but also obscure the good news of grace. The law functions like a mirror, showing our need for Christ, while only Christ can make us righteous. Justification is a gift received, not earned or maintained through human effort.