12. But if the proofs which we have adduced do not appear full enough, and the similitude of the apostle seem wanting in applicability, let us add the voice of prophetic authority, and see what the prophets declare regarding those who at first, indeed, leading a righteous life, have deserved to receive numerous proofs of the goodness of God, but afterwards, as being human beings, have fallen astray, with whom the prophet, making himself also one, says: “Why, O Lord, hast Thou made us to err from Thy way? and hardened our heart, that we should not fear Thy name? Return, for Thy servants’ sake, for the tribes of Thine inheritance, that we also for a little may obtain some inheritance from Thy holy hill.” Jeremiah also employs similar language: “O Lord, Thou hast deceived us, and we were deceived; Thou hast held (us), and Thou hast prevailed.” The expression, then, “Why, O Lord, hast Thou hardened our heart, that we should not fear Thy name?” used by those who prayed for mercy, is to be taken in a figurative, moral acceptation, as if one were to say, “Why hast Thou spared us so long, and didst not requite us when we sinned, but didst abandon us, that so our wickedness might increase, and our liberty of sinning be extended when punishment ceased?” In like manner, unless a horse continually feel the spur of his rider, and have his mouth abraded by a bit, he becomes hardened. And a boy also, unless constantly disciplined by chastisement, will grow up to be an insolent youth, and one ready to fall headlong into vice. God accordingly abandons and neglects those whom He has judged undeserving of chastisement: “For whom the Lord loveth He chasteneth, and scourgeth every son whom He receiveth.” From which we are to suppose that those are to be received into the rank and affection of sons, who have deserved to be scourged and chastened by the Lord, in order that they also, through endurance of trials and tribulations, may be able to say, “Who shall separate us from the love of God which is in Christ Jesus? shall tribulation, or anguish, or famine, or nakedness, or peril, or sword?” For by all these is each one’s resolution manifested and displayed, and the firmness of his perseverance made known, not so much to God, who knows all things before they happen, as to the rational and heavenly virtues, who have obtained a part in the work of procuring human salvation, as being a sort of assistants and ministers to God. Those, on the other hand, who do not yet offer themselves to God with such constancy and affection, and are not ready to come into His service, and to prepare their souls for trial, are said to be abandoned by God, i.e., not to be instructed, inasmuch as they are not prepared for instruction, their training or care being undoubtedly postponed to a later time. These certainly do not know what they will obtain from God, unless they first entertain the desire of being benefited; and this finally will be the case, if a man come first to a knowledge of himself, and feel what are his defects, and understand from whom he either ought or can seek the supply of his deficiencies. For he who does not know beforehand of his weakness or his sickness, cannot seek a physician; or at least, after recovering his health, that man will not be grateful to his physician who did not first recognise the dangerous nature of his ailment. And so, unless a man has first ascertained the defects of his life, and the evil nature of his sins, and made this known by confession from his own lips, he cannot be cleansed or acquitted, lest he should be ignorant that what he possesses has been bestowed on him by favour, but should consider as his own property what flows from the divine liberality, which idea undoubtedly generates arrogance of mind and pride, and finally becomes the cause of the individual’s ruin. And this, we must believe, was the case with the devil, who viewed as his own, and not as given him by God, the primacy which he held at the time when he was unstained; and thus was fulfilled in him the declaration, that “every one who exalteth himself shall be abased.” From which it appears to me that the divine mysteries were concealed from the wise and prudent, according to the statement of Scripture, that “no flesh should glory before God,” and revealed to children—to those, namely, who, after they have become infants and little children, i.e., have returned to the humility and simplicity of children, then make progress; and on arriving at perfection, remember that they have obtained their state of happiness, not by their own merits, but by the grace and compassion of God.