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Galatians 4:21-31 - Hagar, Sarah, and the Jerusalem Above

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Paul has just pleaded with the Galatians like a mother laboring until Christ is formed in them. Now he challenges the desire that threatens that formation: “you who desire to be under the law.” His answer is unexpected. He does not leave the Law behind. He asks them to hear it more carefully, then returns to Abraham’s household and to Isaiah’s promise of a once-barren city filled with children.

The passage turns on a question of birth and inheritance. Will God’s family be defined by what human beings can secure through descent and imposed boundary marks, or by the promise God fulfills in Christ? Paul answers with two mothers, two covenants, and two Jerusalems. His argument is severe, especially when he quotes, “Cast out the bondwoman and her son.” It must be read with the same discipline Paul brings to Scripture: Hagar remains a real enslaved Egyptian woman whom God saw and protected, Israel’s Scriptures remain holy, and no people become legitimate objects of Christian contempt. The inheritance comes from God’s promise, and the promise gives birth to freedom.

The Law Testifies to Promise (Galatians 4:21-23)

21 Tell me, you who desire to be under the law, do you not hear the law? 22 For it is written that Abraham had two sons: the one by a bondwoman, the other by a freewoman. 23 But he who was of the bondwoman was born according to the flesh, and he of the freewoman through promise,

Paul repeats “law” with deliberate force: those who want to be under the Law must learn to hear the Law. Genesis is not an embarrassment he must overcome. It is the witness he calls against the Galatians’ proposed submission. The Law’s own account of Abraham shows that physical descent from Abraham does not by itself explain the promised inheritance.1

The household story is real before it becomes part of Paul’s argument. Genesis identifies Hagar as an Egyptian enslaved woman in Sarah’s household. Sarah gives Hagar to Abraham, Hagar suffers affliction, and mother and son are later expelled. Yet God meets Hagar in the wilderness, hears Ishmael, and promises that he too will become a nation (Genesis 16:1-16; 21:8-21). Paul selects one contrast from that larger history for the Galatian crisis. His allegory does not exhaust everything Scripture says about Hagar or Ishmael.

Verse 22 emphasizes status: one mother is enslaved and the other free. Verse 23 adds the mode of birth. Ishmael is born “according to the flesh,” through ordinary human generation and a household arrangement meant to secure an heir. Isaac is born “through promise,” after Sarah’s barrenness and the parents’ old age have made clear that God’s word, rather than human capacity, creates the heir. Paul is not calling the body evil. “According to the flesh” here names descent and human provision treated as the ground of inheritance; “through promise” names God’s effective word as the source of the promised son.2

That distinction reaches the Galatians directly. Some teachers were pressing Gentile believers to receive circumcision as necessary for covenant belonging. Paul reminds them that their place in Abraham’s family began with God’s promise fulfilled in Christ, not with an ancestry they could acquire or a religious badge they could add. The Son redeemed them and the Spirit cried “Abba, Father” in their hearts before this new demand appeared (Galatians 3:26-29; 4:4-7). Their security rests in the God who gives what human effort cannot manufacture.

Language insight: under the Law, hearing the Law

The Greek of verse 21 places hypo nomon, “under law,” beside ton nomon … akouete, “the Law … do you hear?” The repeated noun exposes a difference between submission and attentive hearing. A person can place himself beneath a religious system while resisting the very Scripture he claims to honor. Paul hears Genesis closely enough to let its promise challenge the use being made of it.1

Paul’s question reaches any reader who can cite Scripture while resisting its correction. We may approach the Bible looking for authorization to secure rank, certainty, or belonging, then hurry past the words that place inheritance in God’s promise. Hearing the Law means allowing God’s word to expose the guarantee we are trying to manufacture. Obedience remains, but it begins as the response of children who have received the promise in Christ, not as a payment meant to make God recognize us as heirs.

Two Covenants and the Free Mother-City (Galatians 4:24-27)

24 which things are symbolic. For these are the two covenants: the one from Mount Sinai which gives birth to bondage, which is Hagar— 25 for this Hagar is Mount Sinai in Arabia, and corresponds to Jerusalem which now is, and is in bondage with her children— 26 but the Jerusalem above is free, which is the mother of us all. 27 For it is written: “Rejoice, O barren, You who do not bear! Break forth and shout, You who are not in labor! For the desolate has many more children Than she who has a husband.”

The NKJV says the events are “symbolic.” Paul’s Greek uses allēgoroumena, a participle that can mean that the events are spoken or interpreted allegorically. The grammar does not make Genesis fictional. Paul takes the history and discloses a further covenantal significance within it. The next sentence controls the reading: “these are the two covenants.” This is apostolic interpretation governed by the biblical story, the promise to Abraham, the sonship argument of Galatians, Isaiah 54, and the freedom command that follows in Galatians 5:1. It is not permission to make Scripture mean whatever an interpreter imagines.3

Paul aligns Hagar, Sinai, and “Jerusalem which now is” because, in his argument, they stand in the same column of slavery. The Greek verb systoichei, translated “corresponds to,” is classificatory. It does not say that Sinai lies geographically beside Jerusalem.4 Nor does it give Christians permission to label Jewish people as children of an inferior woman. Paul is arguing inside Israel’s Scriptures about the basis on which Gentiles enter Abraham’s inheritance. Physical Jerusalem still matters elsewhere in the letter as the place where Paul meets Peter, James, and John and receives the right hand of fellowship (Galatians 1:18; 2:1-10). Here “Jerusalem which now is” bears a polemical role because the rival teaching would place Gentiles under an order of compulsory covenant marking.

The phrase “gives birth to bondage” sharpens the image. The Greek can be heard as giving birth into slavery: the mother-city produces children within the condition she represents.5 Paul is speaking figuratively, but the figure draws power from a brutal human reality. Enslavement was domination, vulnerability, and loss of freedom, not a harmless mood. The Church should feel the seriousness of Paul’s warning without allowing the metaphor to erase the enslaved woman whose name he uses.

Verse 26 changes the horizon: “the Jerusalem above is free.” This city is above because her life and citizenship come from God, not because Christian hope despises the earth, the body, or earthly communities. She is the eschatological city of God’s promise and the mother of the people gathered in Christ. The NKJV’s “mother of us all” reflects a Greek textual tradition that includes “all”; modern critical-text presentations commonly read “our mother.” The shared-maternity claim remains clear in either form, but a detailed judgment about the manuscript evidence requires a full critical apparatus.6

Isaiah 54:1 is the hinge of Paul’s interpretation. The prophetic oracle speaks to barren Zion after judgment and announces a restoration so abundant that she must enlarge her tent. By quoting it, Paul widens the household contrast beyond Sarah and Hagar. The formerly desolate mother-city rejoices because God creates children where ordinary capacity finds none. The Church’s fruitfulness therefore rests neither in ancestry nor in coercion. The risen Christ gathers children by promise and gives them the Spirit of sonship.7

Gems from the Fathers 💎

St John Chrysostom first protects the reality of the Genesis account, then explains why Paul can read it beyond its surface. He writes that “this history not only declares that which appears on the face of it, but announces somewhat farther.”8 The literal story remains true, and its place in God’s saving purpose becomes luminous. That keeps Christian allegory from two opposite errors: reducing Scripture to bare chronicle, or abandoning the text for uncontrolled spiritual invention.

St Augustine reads the two births as a contrast between what human capacity produces and what divine grace gives. “In the one birth, human action is revealed; in the other, a divine kindness comes to light.”9 His developed theology of the two cities is broader than Paul’s immediate dispute, but this sentence serves the passage well. The promised family exists because God is kind and faithful, not because the heirs managed to create God’s future for Him.

The Church’s Voice in Worship ⛪

The Coptic annual lectionary includes Galatians 4:21-31 within the larger Kiyahk 30 Liturgy Pauline reading, Galatians 4:19-5:1.10 The occurrence and range are clear in the date-resolved presentation, although the exact printed-edition provenance was not established here. The session passage is therefore contained in a wider reading rather than assigned as a stand-alone unit. The reading begins with Paul’s labor until Christ is formed in his children and ends with the command to stand fast in the freedom Christ gives.

On that day, the Liturgy also joins Paul’s words with John 1:1-13, where those who receive the Word are born “not of blood, nor of the will of the flesh, nor of the will of man, but of God.” The convergence around divine begetting, sonship, and promise is a passage-based liturgical synthesis; no historical explanation from the compilers has been established.10 Still, the pairing gives the Church a clear way to hear Paul. The Jerusalem above does not produce anxious religious dependents. Through Christ, she bears children who receive their life from God.

Children of Promise and the Severe Word (Galatians 4:28-31)

28 Now we, brethren, as Isaac was, are children of promise. 29 But, as he who was born according to the flesh then persecuted him who was born according to the Spirit, even so it is now. 30 Nevertheless what does the Scripture say? “Cast out the bondwoman and her son, for the son of the bondwoman shall not be heir with the son of the freewoman.” 31 So then, brethren, we are not children of the bondwoman but of the free.

Paul now names the congregation: “we … are children of promise.” This is the center of the whole passage. Christian identity is received before it is defended. God fulfills His promise in Christ, unites believers to His Son, and gives the Spirit who makes their adoption a living prayer. The Galatians do not need another condition to turn them into heirs. They need to remain in the life already given by the Father through the Son and in the Spirit.

Verse 29 describes the flesh-born son as persecuting the Spirit-born son. Paul is interpreting Genesis rather than merely repeating one wording of Genesis 21:9. The Greek Old Testament describes Hagar’s son playing with Isaac, while other translations and interpretive traditions use language such as mocking or scoffing. Paul names the action “persecuted” and applies the pattern to his own crisis. The exact interpretive tradition behind that intensification remains unsettled; no specific rabbinic dependence can be claimed with confidence. Genesis should not be silently rewritten to match Galatians.11

The pressure in Galatia gives Paul’s application its force. Teachers are seeking to place promise-born Gentile believers under circumcision as a necessary boundary of inheritance. What appears to promise fuller membership would actually deny the sufficiency of what God has already done in Christ. The flesh-versus-Spirit contrast is therefore not body against soul. It is humanly secured status against the life created by God’s promise and Spirit.

Then comes the hard sentence: “Cast out the bondwoman and her son.” In Genesis, these words result in the expulsion of a vulnerable woman and child, even though God continues to hear and preserve them. In Galatians, the command’s precise contemporary object is disputed. It may focus on the rival teachers, their demand for circumcision, the enslaving interpretation they impose, or the incompatible covenantal claim behind it. Paul supplies one explicit rationale: “the son of the bondwoman shall not be heir with the son of the freewoman.” The issue is the ground of heirship.12

That rationale forbids a cruel use of the verse. Christians may not turn it into permission to expel or despise Jews, Muslims, immigrants, women, children, dissenters, or wounded members of a parish. Paul is not handing the Church a list of disposable people. He is commanding believers to refuse a basis of belonging that would enslave those whom Christ has freed. This hard text belongs beside the next sentence in the letter: “Stand fast therefore in the liberty by which Christ has made us free” (Galatians 5:1).

Chrysostom keeps the emphasis on inheritance. Paul, he says, “says not that he was cast forth merely because he persecuted, but that he should not be heir.”13 The Father’s surrounding polemic should not be carried into Christian speech against Jewish people, but his close reading of verse 30 is useful. The decisive conflict is between incompatible claims to inheritance. Grace cannot remain the source of heirship while an imposed badge is treated as the necessary source of heirship.

Chrysostom also extends the promise-birth image sacramentally. In Christian regeneration, he says, God’s word works through the baptismal water “as in a sort of womb” to form the baptized.14 This goes beyond Paul’s immediate anti-circumcision argument, but it follows the passage’s ecclesial logic. The Church does not merely announce that people are free; by the Spirit she bears children into Christ’s death and resurrection, nourishes them in His Body, and teaches them to live as heirs.

Freedom therefore has a positive form. It is freedom to receive rather than manufacture one’s standing, freedom to obey without bargaining for worth, freedom to serve without needing superiority, and freedom to reject enslaving teaching without making an enemy of the people caught within it. The child of promise can be firm because the inheritance depends on God’s faithfulness.

Spiritual Fruit 🍇

When belonging feels conditional

The Galatians were being taught that God’s promise needed a humanly secured guarantee: circumcision as necessary proof of heirship. The same fear appears when we believe, “God will truly receive me, keep me, or use me only if I never fail, remain impressive, or earn a leader’s approval.” A good discipline, family heritage, or ministry calling then becomes proof that we deserve a place rather than a gift lived in gratitude.

Write down the condition you believe you must satisfy in order to belong, then name what it produces: comparison, hidden failure, overwork, or bargaining in prayer. Bring that false condition to confession. Before one discipline this week, pray: “Father, You have made me Your child in Christ. Let this obedience grow from gratitude, not from a bargain for belonging.” Faithful obedience remains, but it no longer has to purchase the Father’s recognition.

When you use Scripture to confirm the decision you already want

The Galatians wanted the authority of the Law, but Paul asked whether they had heard it. The same failure occurs when we collect verses for a position while refusing the passage that exposes our pride, our harshness, or our need to control. Scripture becomes a badge rather than a voice.

Choose one passage you often use in an argument and read the paragraphs around it slowly. Ask what the text corrects in you before deciding what it proves about someone else. Hearing the Law begins when God’s word is permitted to judge the reader.

When a hard text makes contempt feel righteous

Hagar is an enslaved woman before Paul’s argument makes her a figure. Jewish people are not the bondwoman’s children to be despised, and verse 30 does not identify vulnerable people as disposable. Religious fear can seize a biblical contrast and turn it into permission to reject a person while calling the rejection faithfulness. Paul’s stated issue is heirship: whether Christ’s promise is sufficient, or whether an imposed condition will be treated as necessary for belonging.

Refuse the enslaving claim without discarding the human being caught beneath it. When this passage brings a person or group to mind, name the teaching or demand you believe is enslaving and test that claim carefully before God. Protect anyone being harmed, repent of contempt, and pray for the people involved by name. Christian firmness guards freedom in Christ while honoring the dignity of Hagar, Jewish people, and every vulnerable person whom severe religious language can place at risk.

When you are trying to force an outcome that only God can give

Sarah’s barrenness and Isaac’s birth expose the exhaustion beneath control. In family life, ministry, work, or prayer, we may pressure people, manipulate timing, or seize a visible guarantee because waiting on God feels unbearable. Human faithfulness has real work to do, but it cannot manufacture the promise.

Name one outcome you are trying to force. Complete the next faithful action that belongs to you, then stop where obedience ends. Pray, “Lord Jesus Christ, keep me faithful without making me controlling. Give what only Your promise can give.”

When freedom requires a firm refusal

Paul’s severe language exposes an enslaving claim that cannot be treated as a harmless option: Christ’s promise is insufficient unless another badge or demand completes it. That claim can appear in a parish, family, or ministry whenever one class of believer is only conditionally welcome, another person’s conscience must be controlled, or fear is used to secure religious conformity.

Name the claim clearly and place beside it Paul’s confession: “we are … children of promise.” Bring your own fear and anger to prayer and confession so that firmness does not become contempt. Then take the next truthful step: decline the coercive demand, seek wise pastoral counsel, protect anyone being harmed, or establish a boundary that refuses bondage without treating a person as disposable.

Footnotes

  1. Greek wording and morphology of Galatians 4:21, including hypo nomon, ton nomon, and akouete: https://biblehub.com/interlinear/galatians/4-21.htm. See also Balla, pages 125-127: https://indieskriflig.org.za/index.php/skriflig/article/download/217/113. ↩ ↩2

  2. Greek wording of Galatians 4:23, including kata sarka and di’ epangelias: https://biblehub.com/interlinear/galatians/4-23.htm. The body-hatred guardrail follows Paul’s contrast in this passage and his embodied account of life in the Spirit elsewhere in Galatians. ↩

  3. Greek text analysis of allēgoroumena in Galatians 4:24: https://biblehub.com/text/galatians/4-24.htm. Balla discusses “spoken” and “interpreted allegorically” on pages 123-124: https://indieskriflig.org.za/index.php/skriflig/article/download/217/113. ↩

  4. Greek text analysis of systoichei in Galatians 4:25 and the NPNF editorial correction to a geographical-adjacency reading: https://biblehub.com/text/galatians/4-25.htm and https://www.ccel.org/ccel/schaff/npnf113.iii.iii.iv.html#iii.iii.iv-p66. ↩

  5. Greek wording eis douleian gennōsa in Galatians 4:24-25: https://biblehub.com/text/galatians/4-24.htm and https://biblehub.com/text/galatians/4-25.htm. See Balla, pages 120-125, for Paul’s literal and figurative slavery vocabulary: https://indieskriflig.org.za/index.php/skriflig/article/download/217/113. ↩

  6. Greek text comparison for Galatians 4:26, showing forms with and without pantōn, and English translation comparison: https://biblehub.com/text/galatians/4-26.htm and https://biblehub.com/galatians/4-26.htm. A full critical-apparatus judgment was not established here. ↩

  7. Galatians 4:27 and Isaiah 54:1: https://biblehub.com/interlinear/galatians/4-27.htm and https://biblehub.com/isaiah/54-1.htm. De Boer’s published abstract supports the broad eschatological, christological, and apocalyptic horizon claimed here; finer details require the full article: https://doi.org/10.1017/S0028688504000219. ↩

  8. St John Chrysostom, Commentary on Galatians, Chapter IV, on Galatians 4:24, in Nicene and Post-Nicene Fathers, First Series, Volume 13: https://www.ccel.org/ccel/schaff/npnf113.iii.iii.iv.html#iii.iii.iv-p59. ↩

  9. St Augustine, City of God 15.2, in Nicene and Post-Nicene Fathers, First Series, Volume 2: https://www.newadvent.org/fathers/120115.htm. ↩

  10. Coptic Orthodox lectionary, Kiyahk 30 Liturgy. The Pauline reading is Galatians 4:19-5:1, and the same day includes John 1:1-13, Acts 13:36-43, and 1 John 4:15-5:4: https://copticchurch.net/readings?g_year=2026&g_month=01&g_day=08. The theological synthesis is inferential rather than a documented statement from the lectionary’s compilers. ↩ ↩2

  11. Galatians 4:29 uses ediōken, “persecuted”: https://biblehub.com/interlinear/galatians/4-29.htm. Genesis 21:9 appears across translations as playing, mocking, or scoffing: https://biblehub.com/genesis/21-9.htm. See Balla, pages 131-132, for discussion of Paul’s interpretive wording: https://indieskriflig.org.za/index.php/skriflig/article/download/217/113. ↩

  12. Greek text analysis of Galatians 4:30 shows the imperative ekbale and the emphatic future negation with klēronomēsei, “will certainly not inherit”: https://biblehub.com/text/galatians/4-30.htm. Balla, pages 132-133, traces the inheritance language within Galatians 4: https://indieskriflig.org.za/index.php/skriflig/article/download/217/113. The contemporary object of the command remains disputed. ↩

  13. St John Chrysostom, Commentary on Galatians, Chapter IV, on Galatians 4:29-30, in Nicene and Post-Nicene Fathers, First Series, Volume 13: https://www.ccel.org/ccel/schaff/npnf113.iii.iii.iv.html#iii.iii.iv-p80. ↩

  14. St John Chrysostom, Commentary on Galatians, Chapter IV, on Galatians 4:28, in Nicene and Post-Nicene Fathers, First Series, Volume 13: https://www.ccel.org/ccel/schaff/npnf113.iii.iii.iv.html#iii.iii.iv-p76. ↩

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