That was the point in posting verse 13. I don't know what strawman you are beating on, but your responses have a lot of "guessing what the other person is thinking" to them.
“Do you not know that it is impossible to have faith without the Holy Spirit? That’s important to know. If you know that, you should know that Philippians 2:13 is in perfect continuity with what I was saying.’
What you are saying is that salvation is given as debt for labor provided. Note, from the CCC:
2010 Since the initiative belongs to God in the order of grace, no one can merit the initial grace of forgiveness and justification, at the beginning of conversion. Moved by the Holy Spirit and by charity, we can then merit for ourselves and for others the graces needed for our sanctification, for the increase of grace and charity, and for the attainment of eternal life. Even temporal goods like health and friendship can be merited in accordance with God’s wisdom. These graces and goods are the object of Christian prayer. Prayer attends to the grace we need for meritorious actions.
We can “then” merit the graces needed for “sanctification.... and for the attainment of eternal life,” amongst temporal blessings.
Compare with the scripture:
Rom_4:4 Now to him that worketh is the reward not reckoned of grace, but of debt.
Rom_11:6 And if by grace, then is it no more of works: otherwise grace is no more grace. But if it be of works, then is it no more grace: otherwise work is no more work.
Eph_2:5 Even when we were dead in sins, hath quickened us together with Christ, (by grace ye are saved;)
Rom_9:16 So then it is not of him that willeth, nor of him that runneth, but of God that sheweth mercy.
And Augustine, whom you quoted:
“For who makes thee to differ, and what has thou that thou hast not received?” (1 Cor. iv. 7). Our merits therefore do not cause us to differ, but grace. For if it be merit, it is a debt; and if it be a debt, it is not gratuitous; and if it be not gratuitous, it is not grace.” (Augustine, Sermon 293)
To Augustine, the entire work of salvation belongs to God. While man is not passive in sanctification, his salvation, and his perseverance, is entirely out of his hands, but is God’s gift:
“But of such as these [the Elect] none perishes, because of all that the Father has given Him, He will lose none. John 6:39 Whoever, therefore, is of these does not perish at all; nor was any who perishes ever of these. For which reason it is said, They went out from among us, but they were not of us; for if they had been of us, they would certainly have continued with us. John 2:19”. (Augustine, Treatise on the Predestination of the Saints)
“I assert, therefore, that the perseverance by which we persevere in Christ even to the end is the gift of God; and I call that the end by which is finished that life wherein alone there is peril of falling.” (Augustine, On the Perseverance of the Saints)
Note, the “whole work” belongs to God, in His reading of the sentence “It is not of him that wills, or him that runs,” and, again, “not of works”:
“And, moreover, who will be so foolish and blasphemous as to say that God cannot change the evil wills of men, whichever, whenever, and wheresoever He chooses, and direct them to what is good? But when He does this He does it of mercy; when He does it not, it is of justice that He does it not for “He has mercy on whom He will have mercy, and whom He will He hardens.” And when the apostle said this, he was illustrating the grace of God, in connection with which he had just spoken of the twins in the womb of Rebecca, who “being not yet born, neither having done any good or evil that the purpose of God according to election might stand, not of works, but of Him that calls, it was said unto her, The elder shall serve the younger.” And in reference to this matter he quotes another prophetic testimony: “Jacob have I loved, but Esau have I hated.” But perceiving how what he had said might affect those who could not penetrate by their understanding the depth of this grace: “What shall we say then?” he says: “Is there unrighteousness with God? God forbid.” For it seems unjust that, in the absence of any merit or demerit, from good or evil works, God should love the one and hate the other. Now, if the apostle had wished us to understand that there were future good works of the one, and evil works of the other, which of course God foreknew, he would never have said, not of works, but, of future works, and in that way would have solved the difficulty, or rather there would then have been no difficulty to solve. As it is, however, after answering, God forbid; that is, God forbid that there should be unrighteousness with God; he goes on to prove that there is no unrighteousness in God’s doing this, and says: “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.” “ (Augustine, The Enchiridion on Faith, Hope and Love, Chapter 98. Predestination to Eternal Life is Wholly of God’s Free Grace.)
“And further, should any one be inclined to boast, not indeed of his works, but of the freedom of his will, as if the first merit belonged to him, this very liberty of good action being given to him as a reward he had earned, let him listen to this same preacher of grace, when he says: “For it is God which works in you, both to will and to do of His own good pleasure;” (Php 2:13) and in another place: “So, then, it is not of him that wills, nor of him that runs, but of God that shows mercy.” (Rom 9:16) Now as, undoubtedly, if a man is of the age to use his reason, he cannot believe, hope, love, unless he will to do so, nor obtain the prize of the high calling of God unless he voluntarily run for it; in what sense is it not of him that wills, nor of him that runs, but of God that shows mercy, except that, as it is written, “the preparation of the heart is from the Lord?” Otherwise, if it is said, “It is not of him that wills, nor of him that runs, but of God that shows mercy, because it is of both,” that is, both of the will of man and of the mercy of God, so that we are to understand the saying, “It is not of him that wills, nor of him that runs, but of God that shows mercy,” as if it meant the will of man alone is not sufficient, if the mercy of God go not with it—then it will follow that the mercy of God alone is not sufficient, if the will of man go not with it; and therefore, if we may rightly say, it is not of man that wills, but of God that shows mercy, because the will of man by itself is not enough, why may we not also rightly put it in the converse way: “It is not of God that shows mercy, but of man that wills,” because the mercy of God by itself does not suffice? Surely, if no Christian will dare to say this, “It is not of God that shows mercy, but of man that wills,” lest he should openly contradict the apostle, it follows that the true interpretation of the saying, “It is not of him that wills, nor of him that runs, but of God that shows mercy,” is that the whole work belongs to God, who both makes the will of man righteous, and thus prepares it for assistance, and assists it when it is prepared.” (Augustine, The Enchiridion on Faith, Hope and Love, Ch. 32)