A story from Abraham reframed

This passage sits in Paul’s larger appeal for the Galatians not to place themselves under the rule-set they are being urged to adopt. Just before this, he describes his relationship with them and worries they are turning back to a form of slavery. Here he presses his point by asking whether they have really listened to what “the law” itself says, and he uses a well-known ancestral story to build a contrast. Immediately after, he continues applying the contrast to his readers’ identity and situation (e.g., Galatians 4:28).

Galatians was written to communities in the Roman province of Galatia not long after Paul helped establish them. Some teachers were persuading these mostly non-Jewish believers that full belonging required taking on Jewish boundary-markers and obligations tied to the law of Moses. Paul responds as a Jewish teacher arguing from Israel’s Scriptures, drawing on shared stories about Abraham, Hagar, Sarah, and Mount Sinai. His references to “the Jerusalem that exists now” reflect the importance of Jerusalem as a living center for Jewish identity and practice in the mid-first century.

Shared ground

Paul is arguing with people who want to live “under the law” (v.21). He presses them to listen to what “the law” itself says, then retells Abraham’s family story (vv.22–23). The story includes two mothers (a slave woman and a free woman) and two sons, described with two kinds of origin: “according to the flesh” versus “through promise.”

Paul explicitly says he is using the story as an allegory (v.24). In his retelling, the two mothers stand for “two covenants.” He links Hagar with Mount Sinai and with “the Jerusalem that exists now,” describing that line as “in bondage” (vv.24–25). He contrasts this with “the Jerusalem that is above,” which he calls “free” and “our mother” (v.26; see free). He backs the contrast with a Scripture quotation about surprising fruitfulness from the one who seemed barren (v.27).

Where interpretation differs

Some readers take Paul’s “allegory” language to mean he is mainly offering a rhetorical illustration: he reuses the Abraham story to make a sharp point about the Galatians’ present situation, without claiming that Genesis always “meant” these covenant correspondences.

Others read Paul’s framing more strongly: because he says “these are two covenants” (v.24), they take him to be identifying real, enduring covenant arrangements—one associated with Sinai and present Jerusalem, the other with God’s promise and the heavenly Jerusalem.

A second difference is how to understand “Jerusalem above.” Some interpret it as God’s heavenly city and the community that belongs to it. Others treat it more narrowly as a symbolic way to speak about God’s promised people (not a geographical or political claim), contrasted with the present, earthly Jerusalem as a marker of the old order.

Why the disagreement exists

Paul’s wording mixes concrete references (Sinai, Arabia, present Jerusalem) with metaphorical family language (“our mother”). He also uses a known historical narrative while openly reshaping it for argument. That combination makes it hard to decide how far Paul intends the correspondences to be pressed.

What this passage clearly contributes

The passage makes a clear theological claim inside Paul’s argument: seeking identity “under the law” fits, in Paul’s framing, the category of slavery rather than freedom (vv.21, 24–26). It also anchors Christian identity in God’s promise rather than ordinary human means (“according to the flesh” vs. “through promise,” v.23). Finally, it introduces the “Jerusalem above” as Paul’s positive symbol for the free covenant people, supported by Scripture’s theme of unexpected promise-fulfillment (v.27; compare Isaiah 54:1).