But he who was of the bondwoman was born after the flesh; but he of the free woman was by promise.
All Commentaries on Galatians 4:23 Go To Galatians 4
Augustine of Hippo
AD 430
Now the fact that Isaac was born of a free wife is not enough to make him signify the people who inherit the New Covenant. What is more important is that he was born according to the promise. For he could have been born according to nature’s norms from a slave and in the same way from a free woman, just as Abraham received from Katurah, whom he subsequently married, sons not according to a promise but according to nature.
