Galatians 3:26–29: All One in Christ
Paul tells the Galatians that faith in Christ, not law-keeping or ethnic standing, makes a person a child of God and an heir of Abraham's promise. Baptism pictures that union with Christ, which levels the status divisions the Galatians were tempted to trust in.
How to trace an argument through a New Testament letter: A Step-by-Step Guide
Galatians 3:1–14 is one continuous argument, not a pile of separate sayings. Tracing it means following Paul's questions, his citations of Scripture and the conclusion he builds toward.