Kehillah in Galatia 4:21-23

Orthodox Jewish Bible

²¹ Tell me, you Goyim who wish to be under the Torah, do you not possess "shema" hearing of the Torah?

²² For the Torah says that Avraham Avinu had shnei banim (two sons), one of shifchah (the slave woman) and one of the gevirah.

²³ But the one of the slave woman has been born according to the basar, and the one of the free woman has been born through the havtachah (promise).