Saul/Paul taught predestination, and that one is not saved by the human will or exertion.
Jesus of Nazareth taught the same as did John the Disciple.
Joh 1:13 who were born, not of blood nor of the will of the flesh nor of the will of man, but of God.
Believers are born again not by the will of the flesh, or the will of man, but by God.
You do NOT choose/will of man to become born again.
Mat 11:25 At that time Jesus declared, “I thank you, Father, Lord of heaven and earth, that you have hidden these things from the wise and understanding and revealed them to little children;
Mat 11:26 yes, Father, for such was your gracious will.
Mat 11:27 All things have been handed over to me by my Father, and no one knows the Son except the Father, and no one knows the Father except the Son and anyone to whom the Son chooses to reveal him.
But you miss the point, who does the Father will to reveal Himself to? The obedient. The one who will follow God.
Joh 14:21-24 He who has My commandments and keeps them, it is he who loves Me. And he who loves Me will be loved by My Father, and I will love him and manifest Myself to him." Judas (not Iscariot) said to Him, "Lord, how is it that You will manifest Yourself to us, and not to the world?" Jesus answered and said to him, "If anyone loves Me, he will keep My word; and My Father will love him, and We will come to him and make Our home with him. He who does not love Me does not keep My words; and the word which you hear is not Mine but the Father's who sent Me.
Even John 14 talks about blindness, but again who are made to see, and who are blinded?
Take a verse like the one you quoted, it does not show God forced HIs will on people. How many things could be called God's will. Many.
It is God's will than none perish.
It is God's will that we preserve.
It is God's will that we act in obedience, and love.
To say the term "God's will" means predestination is a fact it not logical. I admit there are a few scriptures that if you put them together they could point to predestination. But there are equally as many that point to free will of man, and God's desire to save as many as are willing.
It is man's will:
That he be allowed to sin
Using just some of these ideas the following could really mean anything:
John 1:13 who were born, not of blood nor of the will of the flesh nor of the will of man, but of God.
It could well mean:
Who were born not of the fleshly line of Abraham only, nor by the will of man to excuse his sin, but of God's will, the way he does things.
Any number of other ideas could be put there.
Other ideas like foreknowledge, are given an implied meaning by predestination. We see in the early church writings that foreknowledge had a totally different meaning. That it was not controlling a person's salvation, but rather even those foreknown to be wicked could repent. Foreknowledge is partly the idea that God knew ahead of time that people would be wicked, or they would be righteous, not he made them so.
Justin Martyr - Dialoque with Trypho
Chap. CXL. — In Christ All Are Free. The Jews Hope for Salvation in Vain Because They Are Sons of Abraham.
...Furthermore, I have proved in what has preceded, that those who were foreknown to be unrighteous, whether men or angels, are not made wicked by God’s fault, but each man by his own fault is what he will appear to be...
Chap. CXLI. — Free-Will in Men and Angels.
...But if the word of God foretells that some angels and men shall be certainly punished, it did so because it foreknew that they would be unchangeably [wicked], but not because God had created them so. So that if they repent, all who wish for it can obtain mercy from God: and the Scripture foretells that they shall be blessed, saying, ‘Blessed is the man to whom the Lord imputeth not sin;’...
Then you have to throw out half of the scripture, which tells us that God has given us a choice. Like:
Luke 13:34 "O Jerusalem, Jerusalem, the one who kills the prophets and stones those who are sent to her! How often I wanted to gather your children together, as a hen gathers her brood under her wings, but you were not willing!