Job 9:29

“[If] I be wicked, why then labour I in vain?] If he was that wicked person, that hypocrite, Bildad and his other friends took him to be, it was in vain for him to make his supplications to God, as they advised him; so Gersom gives the sense of the words; since God hears not sinners, such as live in sin, regard iniquity in their hearts, and practise it in their lives, at least secretly, as it was suggested Job did; if he was such an one, it must be all lost labour to pray to God to show favour to him, and deliver him out of his troubles, since he might reasonably expect he would shut his eyes and stop his ears at such a man, and regard not his cries; seeking to him must be in vain; prayer may…”

“The "if" is better omitted; I (am treated by God as) wicked; why then labor I in vain (to disprove His charge)? Job submits, not so much because he is convinced that God is right, as because God is powerful and he weak [BARNES].”

“If I be wicked, why then labour I in vain? - The word “if,” here introduced by our translators, greatly obscures the sense. The meaning evidently is, “I am held to be guilty, and cannot answer to that charge. God regards me as such, and if I should attempt to meet him on the charge, it would be a vain attempt; and I must admit its truth. It would be labor in vain to deny it against one so mighty as he is.” This interpretation accords with the argument in the whole chapter. Job maintains that it would be in vain to contend with God, and he gives up the argument in despair. It is quite evident, however, that he does not do it so much because he is convinced himself, as because he knows that…”

“I shall - I shall be used like a wicked man still. Why - Why then should I comfort myself with vain hopes of deliverance, as thou advisest me. Job 9:30”

“Job 9:22, Job 10:7, Job 10:14-17, Job 21:16, Job 21:17, Job 21:27, 22:5-30; Psa 73:13; Jer 2:35 Job 9:30”

“29 If I am wicked, why do I exert myself in vain? 30 If I should wash myself with snow water, And make my hands clean with lye, 31 Then thou wouldst plunge me into the pit, And my clothes would abhor me. 32 For He is not a man as I, that I should answer Him, That we should go together to judgment. 33 There is not an arbitrator between us Who should lay his hand upon us both. The clause with strongly accented "I" affirms that in relation to God is from the first, and unchangeably, a wicked, i.e., guilty, man ( Psa 109:7) (רשׁע, to be a wicked man, means either to act as such Job 10:15, or to appear as such, be accounted as such, as here and Job 10:7; Hiph., Job 9:20, to condemn). Why,…”