23–4:7. The contrast between our former state of pupillage under the Law, and our present state in Christ, full sonship
This is brought out under two aspects:
I. Gal 3:23-29. The preparative character of the Law; faith in Christ makes us Abraham’s seed, (a) Gal 3:23-24. We were protected by the Law with the hope of the future faith. The Law has been our paedagogue, leading us to Christ. (b) Gal 3:25-29. Now we are all sons of God by our faith in Christ, and therefore Abraham’s seed, heirs according to promise.
II. Gal 4:1-7. Temporary submission to laws, for those who are in an inferior position, is common. But Christ has delivered us and brought us into full sonship, as our experience tells us.