Living_Oracles(i)
7 Neither are they all children because they are the seed of Abraham; but "In Isaac shall your seed be called."
8 That is, the children of the flesh are not the children of God; but the children of the promise are counted for seed.
9 For the word of promise was this, "According to this time, I will come, and Sarah shall have a son."
10 And not only this, but Rebecca, also, having conceived twins, by one, even Isaac our father;
11 (they, indeed, not being yet born; neither having done any good or evil; that the purpose of God might stand, by an election; not on account of works, but of him who calls:)
12 it was said to her, "The elder shall serve the younger";
13 as it is written, "Jacob I have loved, but Esau I have slighted."
14 What shall we, then, say? Is there not injustice with God?
15 By no means. For he says to Moses, "I will have mercy on whom I will have mercy; and I will have compassion on whom I will have compassion."
16 So, then, it is not of him who wills, nor of him who runs; but of God, who shows mercy.