Let's take a look at Romans 10:3-17.
For, being ignorant of the righteousness of God, and seeking to establish their own, they did not submit to God’s righteousness. For Christ is the end of the law for righteousness to everyone who believes. For Moses writes about the righteousness that is based on the law, that the person who does the commandments shall live by them. But the righteousness based on faith says, “Do not say in your heart, ‘Who will ascend into heaven?’” (that is, to bring Christ down) “or ‘Who will descend into the abyss?’” (that is, to bring Christ up from the dead). But what does it say? “The word is near you, in your mouth and in your heart” (that is, the word of faith that we proclaim); because, 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. For with the heart one believes and is justified, and with the mouth one confesses and is saved. For the Scripture says, “Everyone who believes in him will not be put to shame.” For there is no distinction between Jew and Greek; for the same Lord is Lord of all, bestowing his riches on all who call on him. For “everyone who calls on the name of the Lord will be saved.” 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 are they to hear without someone preaching? And how are they to preach unless they are sent? As it is written, “How beautiful are the feet of those who preach the good news!” But they have not all obeyed the gospel. For Isaiah says, “Lord, who has believed what he has heard from us?” So faith comes from hearing, and hearing through the word of Christ.
The word of Christ is what brings faith. People hear the word. God makes them alive, rather than be dead, and God implants that word of faith within them. This is a particular work of God. God does not do this for everyone. He does this only to those whom he shows mercy.
Let's go on to Paul's treatise.
Romans 10:18-21 But I ask, have they not heard? Indeed they have, for “Their voice has gone out to all the earth, and their words to the ends of the world.” But I ask, did Israel not understand? First Moses says, “I will make you jealous of those who are not a nation; with a foolish nation I will make you angry.” Then Isaiah is so bold as to say, “I have been found by those who did not seek me; I have shown myself to those who did not ask for me.”But of Israel he says, “All day long I have held out my hands to a disobedient and contrary people.”
Notice the Sovereign will of God. God tells us that it is not seeking of men and choosing of men that leads to salvation. It is God, showing himself to those who don't ask, who saves.
Can God be any clearer to you when He tells you point blank:
"I have shown myself to those who did not ask for me.”
Paul continues the argument in Romans 11:2,4-6.
God has not rejected his people whom he foreknew.
Do you not know what the Scripture says of Elijah, how he appeals to God against Israel? But what is God’s reply to him? “I have kept for myself seven thousand men who have not bowed the knee to Baal.” So too at the present time there is a remnant, chosen by grace. But if it is by grace, it is no longer on the basis of works; otherwise grace would no longer be grace.
Now, I anticipate you will claim that Paul is only speaking to Jews, not Gentiles. Your claim would be wrong.
In Romans 11:11,15-20,24-27 we read:
So I ask, did they stumble in order that they might fall? By no means!
Rather through their trespass salvation has come to the Gentiles, so as to make Israel jealous. For if their rejection means the reconciliation of the world, what will their acceptance mean but life from the dead? If the dough offered as firstfruits is holy, so is the whole lump, and if the root is holy, so are the branches. But if some of the branches were broken off, and you, although a wild olive shoot, were grafted in among the othersand now share in the nourishing root of the olive tree, do not be arrogant toward the branches. If you are, remember it is not you who support the root, but the root that supports you. Then you will say, “Branches were broken off so that I might be grafted in.” That is true. They were broken off because of their unbelief, but you stand fast through faith. So do not become proud, but fear.
For if you were cut from what is by nature a wild olive tree, and grafted, contrary to nature, into a cultivated olive tree, how much more will these, the natural branches, be grafted back into their own olive tree. Lest you be wise in your own sight, I do not want you to be unaware of this mystery, brothers:a partial hardening has come upon Israel, until the fullness of the Gentiles has come in. And in this way all Israel will be saved, as it is written, “The Deliverer will come from Zion, he will banish ungodliness from Jacob”; “and this will be my covenant with them when I take away their sins.”
I ask this: Can a human graft themselves in to the tree of life by their own free will?
No! By no means!!!
God cut us off from a wild and useless olive tree and God grafted us in.
Now, you can read and see this for yourself. Throw away the godless notion that you chose God by your free will. That philosophy is never expressed by God in his written word. Stop trying to give credit to humans and thereby taking away credit from God.
Quite telling. 
