AKJV(i)
22 For it is written, that Abraham had two sons, the one by a female slave, the other by a free woman.
23 But he who was of the female slave was born after the flesh; but he of the free woman was by promise.
24 Which things are an allegory: for these are the two covenants; the one from the mount Sinai, which engenders to bondage, which is Agar.
25 For this Agar is mount Sinai in Arabia, and answers to Jerusalem which now is, and is in bondage with her children.
26 But Jerusalem which is above is free, which is the mother of us all.
27 For it is written, Rejoice, you barren that bore not; break forth and cry, you that travail not: for the desolate has many more children than she which has an husband.
28 Now we, brothers, as Isaac was, are the children of promise.
29 But as then he that was born after the flesh persecuted him that was born after the Spirit, even so it is now.
30 Nevertheless what said the scripture? Cast out the female slave and her son: for the son of the female slave shall not be heir with the son of the free woman.
31 So then, brothers, we are not children of the female slave, but of the free.