The Promise Came Before the Law

Paul argues from the analogy of a ratified human covenant or testament: once established, it is not annulled or supplemented. The Abrahamic promises therefore retain priority over the Mosaic law, which came 430 years later. His singular argument concerning the “seed” of Abraham in verse 16 is a christological reading of Genesis: although sperma can function collectively, Paul focuses its scriptural wording on Christ as the representative descendant through whom the promise reaches its fulfillment.

The law cannot invalidate the prior promise, because an inheritance based on law would no longer rest on promise. Paul then asks why the law was given at all. His answer, “because of transgressions,” is famously ambiguous: the law may have been added to expose, define, restrain, or even increase transgression. Its temporary character is explicit: it was added “until the seed should come.” The reference to its being ordained through angels by a mediator reflects Jewish traditions about Sinai not stated directly in Exodus.

Verses 21-22 deny that the law is therefore opposed to God’s promises. If a law capable of giving life had been given, righteousness could indeed have come through law. Instead, Scripture has “confined all things under sin,” so that the promise may be given through faith in Jesus Christ to those who believe. The phrase pistis Iēsou Christou can be translated “faith in Jesus Christ” or “the faithfulness of Jesus Christ”; the surrounding emphasis on believers receiving the promise keeps human faith clearly present regardless of how the genitive is resolved.

Galatians 3 develops the theological argument that emerged from Paul’s confrontation with Peter in 2:11-21. Paul appeals first to the Galatians’ own reception of the Spirit and then to Scripture, especially Abraham traditions, to argue that God’s blessing comes through faith rather than “works of the law.” Genesis 15:6, Genesis 12:3, Deuteronomy 27:26, Habakkuk 2:4, and Deuteronomy 21:23 are woven together to contrast blessing through faith with the curse borne by Christ.

Verses 15-22 then place the Mosaic law within salvation history: the Abrahamic promise precedes the law and is not annulled by it. The law has a temporary role associated with transgressions until the promised “seed,” Christ, arrives. Verses 23-29 describe the law as a guardian until faith’s coming and identify baptism into Christ as incorporation into a new community in which ethnic, social, and gender distinctions no longer determine covenant membership.