^{6 Ref} But it is not as if the word of God was without effect. For they are not all Israel, who are of Israel:

^{7 Ref} And they are not all children because they are the seed of Abraham; but, In Isaac will your seed be named.

^{8 Ref} That is, it is not the children of the flesh, but the children of God's undertaking, who are named as the seed.