Romans 9:8 Meaning: Children of God by Promise, Not Birth
That is, it is not the children of the flesh who are children of God, but the children of the promise are counted as heirs.
That is, They which are the children of the flesh, these are not the children of God: but the children of the promise are counted for the seed.
That is, it is not the children of the flesh that are children of God; but the children of the promise are reckoned for a seed.
that is, the children of the flesh--these are not children of God; but the children of the promise are reckoned for seed;
That is, [they that are] the children of the flesh, these [are] not the children of God; but the children of the promise are reckoned as seed.
Meaning in one sentence
Paul explains that being a child of God depends on His promise, not physical lineage. This verse redefines who belongs to Abraham's true family.
Context
Paul has been wrestling with a painful question: if Israel has largely rejected the Messiah, has God failed to keep His promises? In Romans 9, he argues no. He points back to the story of Isaac and Ishmael. Abraham had two sons, but only Isaac carried the covenant forward. The difference was not bloodline but God's promise. Paul draws a line from that ancient story to the present day. Being part of God's family has never been about who your parents are or what nation you belong to. It has always been about God's gracious promise, received by faith. This verse is the hinge of that argument. It reframes everything for Jewish readers who trusted their ancestry, and for Gentile readers who needed to know they were fully included.
Key Words
Two key phrases carry the weight here. Children of the flesh uses the Greek word sarx for flesh. It points to what comes naturally, birth, bloodline, family tree. Paul is not saying that physical descent is bad; he is saying it is not what defines belonging to God. Children of the promise uses the word epangelia. This is a promise freely given, not earned. Isaac was born because God spoke a word, not because Abraham and Sarah had any natural reason to expect a child.
Then there is the verb logizetai, translated are regarded or counted. It is an accounting term. God does not look at your family tree and compute your status. He credits you as a child because He promised. This is the same word Paul used in Romans 4 when he said faith was counted as righteousness. Your place in God's family is credited to you through trust in the Promiser, not through a birth certificate. That is the heart of this verse.
How Christians Read This Verse
Christians across traditions have heard this verse as a clear statement that God's family is not defined by ethnicity or religious heritage. Calvin and Reformed commentators emphasize God's sovereign choice: the promise is fulfilled in those God specially selects. Methodists like Wesley and Clarke note that the promise is received through faith, making believers the true children of Abraham. The Cambridge Bible points out that children of the promise are those who partake in the blessing God pledged to Abraham. While interpretations differ on how election and human response work together, all agree that Paul dismantles any notion that physical descent automatically brings spiritual privilege. The true seed of Abraham are those who share his faith, whether Jew or Gentile.
A common misunderstanding
A common misreading is that Paul dismisses Jewish identity altogether, as if God has rejected His people. In fact, Paul is not saying physical descent is meaningless. He is saying it is not enough. Later in Romans 11 he insists that God has not cast away His people. The point here is that from the beginning, God's promise operated by selection, not by automatic inheritance. The Jewish people remain beloved, but the family of God in the fullest sense is those who belong by promise and faith.
Living This Out
Maybe you grew up in a church and always assumed you were part of God's family by default. Or maybe you came from a different background and wonder if you really belong here. Paul's words cut through both assumptions. Being a child of God is not a hand-me-down from your parents or a birthright of your nation. It is a gift of God's promise, received through faith. This week, you can stop measuring your spiritual standing by your heritage or your lack of it. Instead, look to the promise. God made a promise to Abraham, and that promise extends to everyone who trusts Christ. You are counted as an heir not because of who you come from, but because of who God is and what He said.
Main takeaway: God's children are those He counts as heirs through His promise, not those born into a family line.
For Families
For ages 5, 8
God's family is not like a club where you have to have the right last name. Isaac was Abraham's son because God promised him, not because he was the oldest. God invites everyone who trusts Him to be part of His family too.
For ages 9, 12
The Jews in Paul's day thought that being born into a Jewish family automatically made them part of God's chosen people. Paul shows them that it never worked that way. Abraham had two sons, Isaac and Ishmael. Both were his physical children, but only Isaac was the son of the promise. In the same way, being a Christian isn't something you inherit from your parents. You become a child of God when you trust the promise He made through Jesus. That's good news for everyone, no matter where you come from.
Questions People Ask
What does Paul mean by 'children of the flesh'?
Children of the flesh refers to people who are physical descendants of Abraham, like Ishmael. Paul uses the term to show that biological lineage alone does not make someone a child of God. The phrase contrasts with 'children of the promise'.
Who are the 'children of the promise'?
The children of the promise are those who inherit God's blessing because of His gracious promise, not because of natural birth. Isaac is the prime example: he was born because God promised Abraham and Sarah a son. In the same way, all who trust in Christ become children of the promise.
Does this verse say that Jewish people are not God's children?
No, Paul is not denying Jewish identity. He is arguing that physical descent from Abraham is not the same as being part of the spiritual family of God. Later in Romans 11 he says God has not rejected His people. The verse redefines who truly belongs to the covenant as those who share Abraham's faith.
What does it mean to be 'counted as heirs'?
The Greek word 'logizetai' means to reckon or credit. It is an accounting term. God credits or counts believers as part of Abraham's true offspring. This is the same word used for righteousness being credited through faith in Romans 4. Being an heir is not earned; it is credited by God based on His promise.
For pastors & researchers
Greek interlinear, 8 commentaries & word study