In all this Job sinned not, nor charged God with wrong.
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Gregory The Dialogist
AD 604
The mind that grieves over testing must be wary and diligent lest the temptation prompt it from within to utter words that are forbidden or to complain about being tested. It should be vigilant that the fire that tests it like gold not turn everything into mere chaff by the excesses of a lawless tongue. - "Morals on the Book of Job 2.88"
88. In that the mind in grief ought to watch with wariness and diligence, lest, when the temptation prompts it within, it break forth inwardly into the utterance of forbidden words, and murmur at the trial; and lest the fire, which burns it like gold, by the excesses of a lawless tongue, may turn it to the ashes of mere chaff.
89. Now nothing hinders that all that we have said concerning virtues, be understood of those gifts of the Holy Spirit which are vouchsafed in [vid. chap. 91.] manifestation of virtue, for to one is given the gift of Prophecy, to another different kinds of tongues, to another the gifts of healing. But forasmuch as these gifts are not always present in the mind in the same degree, it is clearly shewn that it is for our good that they are sometimes withdrawn, lest the mind should be lifted up in pride. For if the Spirit of Prophecy had always been with the Prophets, plainly the Prophet Elisha would never have said, Let her alone, for her soul is vexed within h...
'That he neither sinned, nor charged God foolishly,’ Peter, as we have said, above testifies of Him in plain terms, saying, Who did no sin, neither was guile found in His mouth. [1 Pet. 2, 22] For guile in the mouth is so much the more senseless folly with God, the more that in the eyes of men it passes for crafty wisdom, as Paul bears witness, saying, The wisdom of this world is foolishness with God. [1 Cor. 3, 19] Forasmuch then as there was no guile in His mouth, verily He said nothing foolishly. The Priests and the Rulers believed that He charged God foolishly, when, being questioned at the time of His Passion, He testified that He was the Son of God. And hence they question, saying, What further need have we of witnesses? Behold now we have heard His blasphemy. [Mat. 26, 65] But He did not charge God foolishly, in that speaking the words of truth, even in dying He brought before the unbelievers that concerning Himself, which He soon after manifested to all the redeemed by ri...
33. Since, when we are laid hold of by distressing trials, we may even in the silent working of our thoughts, without word of mouth, be guilty of sin; the testimony both of the lips and of the heart is given to blessed Job. For it is first said, he sinned not, and then it is afterwards added, nor charged God foolishly: for he, who uttered nothing foolishly, kept offence from his tongue, and whereas the words, he sinned not, come before, it appears that he excluded the sin of murmuring even from his thought, so that he neither sinned nor spake foolishly, since he neither swelled with indignation in his silent consciousness, nor gave a loose to his tongue in reviling. For he does ‘charge God foolishly,’ who, when the strokes of divine chastisement are fallen upon him, strives to justify himself. For if he venture in pride to assert his innocence, what else does he, but impugn the justice of the chastiser? Let it suffice for us to have run through the words of the history thus far.
“Job did not sin” before God. That is, he was pure from sins committed with his tongue or in his thoughts, and he praised God by means of words in accordance with his thoughts. Actually “he did not charge God with insanity,” that is, Job does not accuse the will of God or scorn the economy of the Creator, and he does not perceive insanity in the events that had occurred. He did not believe that the righteous are abandoned into the hands of sinners. - "Homilies on Job 3.1.22"