23 But he who was of the bondwoman was born after the flesh; but he of the freewoman was by promise.
23
His son by the slave woman was born according to the flesh, but his son by the free woman was born as the result of a divine promise.
24 Which things are an allegory: for these are the two covenants; the one from the mount Sinai, which gendereth to bondage, which is Agar.
24
These things are being taken figuratively: The women represent two covenants. One covenant is from Mount Sinai and bears children who are to be slaves: This is Hagar.