Romans 9:7

9:7 nor are all the children Abraham’s true descendants; rather “through Isaac will your descendants be counted.” ¹ 

Romans 9:10

9:10 Not only that, but when Rebekah had conceived children by one man, ²  our ancestor Isaac –

¹ tn Grk “be called.” The emphasis here is upon God’s divine sovereignty in choosing Isaac as the child through whom Abraham’s lineage would be counted as opposed to Ishmael.

² tn Or possibly “by one act of sexual intercourse.” See D. Moo, Romans (NICNT), 579.