In today’s fast-paced world, it’s easy to forget the unshakable foundation of our faith. the promise of God fulfilled in Christ. In this sermon based on Galatians 3:15–29, Pastor Léveillé walks us through Paul’s message to the Galatians, reminding us that God’s covenant of grace is greater than the law, and that faith in Christ brings us into a new family, free from division and full of promise. Discover how God’s unchanging word offers you identity, freedom, and unity through faith.
1. God’s Promise Stands Forever (Verses 15–18)
Paul reminds us that God’s promises are unchangeable. He uses a human example: even a man-made covenant, once confirmed, cannot be annulled or added to. How much more secure is God’s promise! Paul points out that the promises were made not to many descendants, but to one — “to your seed,” who is Christ. This promise predates the Law, which came 430 years later, and it does not nullify the covenant previously established by God. The inheritance, then, does not come through the law, but through the promise God made.
This means that our salvation has never been about our performance, but always about God’s faithfulness. God’s promise is not subject to change based on our behaviour; it is anchored in His character and in Christ. The Law was never intended to replace this promise. The gospel is rooted in the certainty of what God has spoken — and He does not change.
2. The Law Points Us to Freedom in Christ (Verses 19–25)
If the promise is secure and sufficient, we might ask, “Why then the Law?” Paul answers — the Law was added because of transgressions, to show us our need for grace, until the promised Seed, Christ, would come. It was put in place through mediators, but God is one. The Law is not contrary to the promises of God. Rather, it shows us our inability to attain righteousness on our own so that we would look to Christ for salvation.
Scripture locked everything up under sin so that what was promised — being given through faith in Jesus Christ — might be given to those who believe. Before Christ, we were held captive under the law, imprisoned until the coming faith would be revealed. The Law was our guardian, our tutor, leading us to Christ, so that we might be justified by faith. Now that faith has come, we are no longer under a guardian. In other words, the Law’s purpose was preparatory, never ultimate. It leads us to Christ, who fulfills the Law and sets us free.
3. Faith Makes Us One Family in Christ (Verses 26–29)
Paul’s conclusion is deeply encouraging. He says, “In Christ Jesus, you are all children of God through faith.” Our identity is not found in law-keeping, ethnicity, or status — but in our union with Christ. When we were baptized into Christ, we put on Christ. There is neither Jew nor Greek, slave nor free, male nor female — we are all one in Christ Jesus.
This unity transcends every human category. Our inclusion in the family of God is not based on birth or background, but on faith. And if we belong to Christ, then we are Abraham’s offspring, heirs according to the promise. The ancient promise made to Abraham now includes us. Faith is what grafts us into the lineage of God’s people. We are not just forgiven — we are adopted. Not just saved — but included in the inheritance.
