Translations
Original
Notes
Isaac was the promised child. During his weaning celebration, Ishmael treated Isaac badly (see Genesis 21:9). Similarly, in Galatia, people who insisted on following the law were treating badly those who trusted in God's promise, the message of God's grace through faith in Jesus Christ alone (compare Acts 13:50–51; 14:1–7).
Paul uses the story of Hagar and Sarah in 4:21–27 to explain the situation in Galatia. Isaac represents those born through God's promise (see 3:8) by the Spirit's power (3:2–5; see also Ephesians 1:13–14). These people trust in God for salvation through Christ by faith. Ishmael represents those who think following the law of Moses will make them acceptable to God (Galatians 3:10–11). This idea would have surprised the Judaizers, who believed they were Abraham's true children because they followed the law of Moses.
Paul now returns to using Scripture to support his argument. He tells the story of two of Abraham's wives, Hagar and Sarah, and their children. He uses this story to show the difference between two types of people: those who are like slaves because they try to follow all the laws, and those who are free because they belong to Christ.
Paul uses a special way of explaining Bible stories (called allegory) that Jewish teachers used in those days (see study note on 4:24). Paul was trained as a rabbi (see Acts 22:3) and could effectively debate the Judaizers using their own methods.
Parallels
Glossary
Bible, Manuscripts and Text of the (New Testament) Faith Hagar Isaac Letter to the Galatians Peter, Second Letter of Sarah
Topics
Abraham: God's Covenant With Abraham: Isaac Born To Abraham: Sends Hagar and Ishmael Away Justification: General Scriptures Concerning Parables: The Two Covenants Persecution of the Righteous Persecution: Men by Nature Addicted To Regeneration: General Scriptures Concerning Scorning and Mocking: Saints Endure, on Account of Being Children of God