Augustine of Hippo : Although the same word, indeed, is employed in a different sense, where any one suffers evils for his sins, that he may be corrected. Whence is that in the Epistle to the Hebrews, "For what son is he to whom the father giveth not discipline?" And this is still more apparent in the same epistle: "Now no chastening for the present seemeth to be joyous, but grievous: nevertheless afterward it yieldeth the peaceable fruit of righteousness unto them which are exercised thereby." — ON THE TRINITY 14.1.1 John Chrysostom : "Ye endure chastisement" (he says); not for punishment, nor for vengeance, nor for suffering. See, from that from which they supposed they had been deserted of God, from these he says they may be confident, that they have not been deserted. It is as if he had said, Because ye have suffered so many evils, do you suppose that God has left you and hates you? If ye did not suffer, then it were right to suppose this. For if "He scourgeth every son whom He receiveth," he who is not scourged, perhaps is not a son. What then, you say, do not bad men suffer distress? They suffer indeed; how then? He did not say, Every one who is scourged is a son, but every son is scourged. For in all cases He scourges His son: what is wanted then is to show, whether any son is not scourged. But thou wouldest not be able to say: there are many wicked men also who are scourged, such as murderers, robbers, sorcerers, plunderers of tombs. These however are paying the penalty of their own wickedness, and are not scourged as sons, but punished as wicked: but ye as sons. — Homily on Hebrews 29 Theodoret of Cyrus : Fathers are in the habit of disciplining their true children, and if they see them caned by the teachers, they do not worry; they see the fruit coming from the discipline. But they despise illegitimate children and do not accord them equal attention. So if you also avoid discipline, you are of the number of the illegitimate. — INTERPRETATION OF Hebrews 12