Galatians 4:28 tells believers that they are children of promise, just as Isaac was. Paul is saying that the way God came through for Abraham’s son is the same way God brings Christians into his family, by his word of promise and not by human effort. Paul writes this to the churches in the region of Galatia, and he addresses them directly as “brothers,” reminding them of their shared identity in Christ.
Now we, brothers, as Isaac was, are children of promise.
Galatians 4:28 (WEB)
What Galatians 4:28 Means
The word “now” signals a turn in the argument. Paul has just been describing two women, Hagar and Sarah, and two kinds of children, those born through human arrangement and those born through God’s promise. Here he moves from the story to the readers: you, the Galatian believers, stand where Isaac stood. Your place in God’s family was secured the way Isaac’s was, by God’s declared intention and not by your own striving.
The phrase “children of promise” describes a relationship built on God’s word. Isaac was not the result of Abraham and Sarah working out a plan; he was born because God had said he would be. In the same way, the Christian’s standing before God rests on what God has promised and fulfilled in Christ, not on a record of keeping the law. The verse does not promise that believers will always feel secure or that life will be easy. Its claim is narrower and firmer: your belonging to God is grounded in his promise, and that promise does not change with your mood or your performance.
The Context of Galatians 4:28
The letter to the Galatians was written by the apostle Paul to churches he had founded in the region of Galatia, in the middle of the first century. The main concern of the letter is that some teachers were pressing Gentile believers to accept circumcision and the law of Moses as necessary for full membership in God’s people. Paul argues forcefully that the gospel rests on faith in Christ, and that Gentiles who believe are heirs of the promise made to Abraham.
Just before verse 28, Paul uses the story of Hagar and Sarah as an allegory. Hagar’s son Ishmael was born according to the flesh, in the ordinary course of human effort, while Isaac was born according to the promise. Verse 29 goes on to say that the one born according to the flesh persecuted the one born according to the Spirit, which shows that Paul is describing a present conflict as well as a past event. Because verse 28 sits between these two ideas, it reads as the hinge of the passage: the readers are not like Ishmael but like Isaac, and so they should not accept a return to the old arrangement.
Key Phrases in Galatians 4:28
Romans 8:16
The Spirit himself testifies with our spirit that we are children of God…
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Paul speaks here of the Spirit bearing witness with our spirit that we are God’s children. This pairs closely with Galatians 4:28 because both passages affirm that our childhood in God’s family is something the Spirit confirms in the heart, not merely a legal status we hope is true.
Ephesians 1:13-14
13 In him you also, having heard the word of the truth, the Good News of your salvation—in whom, having also believed, you were sealed with the promised Holy Spirit, 14 who is a pledge of our inheritance, to the redemption of God’s own possession, to the praise of his glory.
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This passage describes believers being sealed with the promised Holy Spirit as a guarantee of their inheritance. It reinforces the idea in Galatians 4:28 that the promise of God is the foundation of the believer’s standing and future.
A Short Prayer From Galatians 4:28
Father, thank you that I am counted among your children not because of anything I have done, but because you have promised and kept your word in Christ. When I feel the old pull to measure myself by my performance, remind me that I belong to you as Isaac belonged to Abraham, by your promise. Help me rest in that truth today and let it shape how I treat the people around me. Amen.
