How great am I that I should answer Him, and talk with Him in my words?
As though he said in plain words, 'If that created being is unable to take thought of Him, which is not burthened by the flesh, in what spirit do I dispute about His judgments, who am straitened by the burthen of corruption?' But as God's words to us are oftentimes His judgments, declaring the sentence of our actions, so our words to God are the deeds which we set forth; but man 'cannot reason with God in his words,' in that, in the eye of His exact judgment, he maintains no assurance in his actions.
Therefore, after he has shown in many ways the immensity of the divine power and the depth of the divine wisdom, he draws the conclusion to the proposition, namely that his intention is not to argue with God. He explains this when he says, "Am I great enough," how powerful and how wise, "to answer him," i.e. to answer the most powerful and most wise God when he interrogates me "and to address him in my own words." This means by examining his deeds and saying, "Why do you do this?" (v.12) as if to say: I am not sufficient to argue with God, for argument consists in answering and making objections.
[AD 604] Gregory the Dialogist on Job 9:14
As though he said in plain words, 'If that created being is unable to take thought of Him, which is not burthened by the flesh, in what spirit do I dispute about His judgments, who am straitened by the burthen of corruption?' But as God's words to us are oftentimes His judgments, declaring the sentence of our actions, so our words to God are the deeds which we set forth; but man 'cannot reason with God in his words,' in that, in the eye of His exact judgment, he maintains no assurance in his actions.