The following resource is from desiring God.org. Now let's read the whole unit, 9 to 13 for the Old Testament support. Paul's going to develop a support from Isaac not Ishmael is the true Israel and Jacob

not Esau, the true Israel.

This is what the promise said.

This is what the promise said.

About this time next year, I will return and Sarah will have a son and that I will

return is crucial this is God's doing that she's pregnant that the pregnancy

succeeds that she gives birth.

And not only so, okay, now right there, the break between 9 and 10 is a shift from the illustration of Isaac and Ishmael to the

illustration of Jacob and Esau, and we should ask, why does he bring in another illustration,

and how is it different, better, weaker, stronger?

It's way stronger.

And that's why he brings it in, I think.

So you'd be asking now, how does the illustration of Jacob and Esau, born to Rebecca and Isaac, make the case even stronger

that he's trying to make.

Not only so, in other words, not only in the case of

Isaac and Ishmael, but also Rebecca had, when Rebecca had conceived children by one man,

come back, what you watch it one man.

Our forefather Isaac, though they were not yet born

and had done nothing either good or bad in order that God's purpose of election might continue, stand, endure, not because of works, but because of him who calls, she was told,

the older will serve the younger.

As it is written, Jacob I loved, he loved, he saw I hate it.

How is Jacob and he saw a better?

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