“ After The Holy One, blessed is He, named him Abraham, after that he begot Isaac. Another thing: Since the scripture wrote: "Isaac, son of Abraham", it had to say: "Abraham begot Isaac", because the insulters of the generation were saying: From Abimelech Sarah conceived, for how many years she stayed with Abraham and did not conceive from him. What did The Holy One, blessed is He, do? He Shaped the countenance of the face of Isaac like Abraham, and all testified: "Abraham begot Isaac". And this is what he wrote here: Isaac was the son of Abraham, for there is testimony that Abraham begot Isaac. ”

“ And was is correct in my eyes is that he returned now and began with the father of the lineage, as the custom of the scripture to return by the men of degree to the head of the lineage. And so in Chronicles (1 1:17-18) it is written: ... ”