Which words of mine, Pelagius at Rome, when they were mentioned in his presence by a certain brother and fellow bishop of mine, could not bear; and contradicting somewhat too excitedly, nearly came to a quarrel with him who had mentioned them. But what, indeed, does God primarily and chiefly command, but that we believe on Him? And this, therefore, He Himself gives, if it is well said to Him, "Give what Thou commandest." And, moreover, in those same books, in respect of what I have related concerning my conversion, when God converted me to that faith which, with a most miserable and raging talkativeness, I was destroying, do you not remember that it was so narrated how I showed that I was granted to the faithful and daily tears of my mother, that I should not perish?  Where certainly I declared that God by His grace converted to the true faith the wills of men, which were not only averse to it, but even adverse to it. Further, in what manner I besought God concerning my growth in perseverance, you know, and you are able to review if you wish it. Therefore, that all the gifts of God which in that work I either asked for or praised, were foreknown by God that He would give, and that He could never be ignorant of the persons to whom He would give them, who can dare, I will not say to deny, but even to doubt? This is the manifest and assured predestination of the saints, which subsequently necessity compelled me more carefully and laboriously to defend when I was already disputing against the Pelagians. For I learnt that each special heresy introduced its own peculiar questions into the Church -- against which the sacred Scripture might be more carefully defended than if no such necessity compelled their defence. And what compelled those passages of Scripture in which predestination is commended to be defended more abundantly and clearly by that labour of mine, than the fact that the Pelagians say that God's grace is given according to our merits; for what else is this than an absolute denial of grace?
 Confessions, Book x. chs. 19, 31, and 37.  Confessions, Book iii. chs. 11 and 12, Book ix. ch. 8.
 Confessions, Book iii. chs. 11 and 12, Book ix. ch. 8.