6 But it is not as though the word of God has failed. For not all who are descended from Israel belong to Israel, 7 and not all are children of Abraham obecause they are his offspring, but p“Through Isaac shall your offspring be named.” 8 This means that it is not the children of the flesh who are the children of God, but qthe children of the promise are counted as offspring. 9 For this is what the promise said: r“About this time next year I will return, and Sarah shall have a son.” 10 And not only so, but salso when Rebekah had conceived children by one man, our forefather Isaac, 11 though they were not yet born and had done nothing either good or bad—in order that God’s purpose of election might continue, not because of works but because of thim who calls— 12 she was told, u“The older will serve the younger.” 13 As it is written, v“Jacob I loved, but Esau I hated.”
14 What shall we say then? wIs there injustice on God’s part? By no means! 15 For he says to Moses, x“I will have mercy on whom I have mercy, and I will have compassion on whom I have compassion.” 16 So then it depends not on human will or exertion,2 but on God, who has mercy. 17 For the Scripture says to Pharaoh, y“For this very purpose I have raised you up, that I might show my power in you, and that my name might be proclaimed in all the earth.” 18 So then he has mercy on whomever he wills, and he hardens whomever he wills.
19 You will say to me then, “Why does he still find fault? For zwho can resist his will?” 20 But who are you, O man, ato answer back to God? bWill what is molded say to its molder, “Why have you made me like this?” 21 cHas the potter no right over the clay, to make out of the same lump done vessel for honorable use and another for dishonorable use? 22 What if God, desiring to show his wrath and to make known his power, has endured with much patience evessels of wrath fprepared for destruction, 23 in order to make known gthe riches of his glory for vessels of mercy, which he hhas prepared beforehand for glory— 24 even us whom he ihas called, jnot from the Jews only but also from the Gentiles?
Cited from Gen. 25:23
Cited from Ex. 33:19
Greek not of him who wills or runs
Cited from Ex. 9:16
See ch. 8:28
See ch. 3:29