Romans 9:18-22 [KJV]
Therefore hath he mercy on whom he will [have mercy], and whom he will he hardeneth.  Thou wilt say then unto me, Why doth he yet find fault? For who hath resisted his will? Nay but, O man, who art thou that repliest against God? Shall the thing formed say to him that formed [it], Why hast thou made me thus? Hath not the potter power over the clay, of the same lump to make one vessel unto honour, and another unto dishonour? [What] if God, willing to shew [his] wrath, and to make his power known, endured with much longsuffering the vessels of wrath fitted to destruction:
		 
		
	 
Nothing there about unconditional wrath
And it was unfaithful Jews who were hardened
Romans 9:30–10:21 (UASV) — 30 What shall we say, then? That Gentiles who did not pursue righteousness have attained righteousness, even the righteousness that is by faith; 31 but Israel, pursuing a law of righteousness, did not arrive at that law. 32 Why is that? Because they did not pursue it by faith, but as if it were by works. They stumbled over the stumbling stone, 33 as it is written, “Behold, I am laying in Zion a stone of stumbling, and a rock of offense; and whoever believes in him will not be put to shame.” 1 Brothers, my heart’s desire and my prayer to God for them is for their salvation. 2 For I bear them witness that they have a zeal for God, but not according to accurate knowledge. 3 For ignoring the righteousness of God, and seeking to establish their own, they did not subject themselves to the righteousness of God. 4 For Christ is the end of the Law for righteousness to everyone who believes. 5 For Moses writes about the righteousness that is by the Law: “The man who does these things will live by means of them.” 6 But the righteousness based on faith says: “Do not say in your heart, ‘Who will ascend into heaven?’ that is, to bring Christ down, 7 “or ‘Who will descend into the abyss?’ ” (that is, to bring Christ up from the dead).” 8 But what does it say? “The word is near you, in your mouth and in your heart,” that is, the word of faith which we are proclaiming, 9 that if you confess with your mouth that Jesus is Lord and believe in your heart that God raised him from the dead, you will be saved. 10 For with the heart one believes, resulting in righteousness, and with the mouth one confesses, resulting in salvation. 11 For the Scripture says, “Everyone who believes in him will not be put to shame.” 12 For there is no distinction between Jew and Greek; for the same Lord is Lord of all, who is rich to all who call on him; 13 for “everyone who calls on the name of the Lord will be saved.” 14 How then will they call on him in whom they have not believed? And how are they to believe in him of whom they have never heard? And how will they hear without someone to preach? 15 And how are they to preach unless they are sent? As it is written, “How beautiful are the feet of those who declare good news of good things!” 16 
But they have not all obeyed the gospel. For Isaiah says, “Lord, who has believed what he has heard from us?” 17 So faith comes from hearing and hearing through the word of Christ. 18 But I say, surely, they have never heard, have they? Indeed they have. “Their voice has gone out to all the earth, and their words to the ends of the inhabited earth.” 19 But I say, Israel did not know, did they? First, Moses says, “I will make you jealous of those who are not a nation; with a foolish nation I will make you angry.” 20 And Isaiah is very bold and says, “I was found by those who did not seek me; I became manifest to those who did not ask for me.” 21 
But as for Israel he says, “All day long I have held out my hands to a disobedient and obstinate people.”
BTW the reference to the potter is found here.
Jeremiah 18:1–12 (UASV) — 1 The word that came to Jeremiah from Jehovah: 2 “Arise, and go down to the potter’s house, and there I will let you listen to my words.” 3 So I went down to the potter’s house, and there he was working on his wheel. 4 And the vessel he was making of clay was spoiled in the potter’s hand, and he reworked it into another vessel, as it was right in the eyes of the potter to make. 5 And the word of Jehovah came to me: 6 “
O house of Israel, can I not do with you as this potter has done? declares Jehovah. Look, like the clay in the potter’s hand, so are you in my hand, O house of Israel. 7 At one moment I might speak concerning a nation or concerning a kingdom to uproot, to tear down, and to destroy it; 8 and if that nation which I have spoken against turns from its evil, I will also feel regret over the calamity that I intended to bring against it. 9 Or at another moment I might speak concerning a nation or concerning a kingdom to build up or to plant it; 10 if it does evil in my eyes by not listening to my voice, then I will feel regret over the good with which I had promised to bless it. 11 Now, therefore, say to the men of Judah and the inhabitants of Jerusalem: ‘Thus says Jehovah, Look, I am forming a calamity against you and devising a plan against you. Return, everyone from his evil way, and amend your ways and your deeds.’ 12 “But they say, ‘That is in vain! We will follow our own plans and will every one act according to the stubbornness of his evil heart.’