Surely it is meet {z} to be said unto God, I have borne chastisement, I will not offend any more:

(z) It only belongs to God to moderate his corrections, and not to man.

Jamieson-Fausset-Brown Bible Commentary

31. Job accordingly says so (Job 40:3-5; Mic 7:9; Le 26:41). It was to lead him to this that Elihu was sent. Though no hypocrite, Job, like all, had sin; therefore through affliction he was to be brought to humble himself under God. All sorrow is a proof of the common heritage of sin, in which the godly shares; and therefore he ought to regard it as a merciful correction. Umbreit and Maurer lose this by translating, as the Hebrew will bear, "Has any a right to say to God, I have borne chastisement and yet have not sinned?" (so Job 34:6).

borne-namely, the penalty of sin, as in Le 5:1, 17.

offend-literally, "to deal destructively or corruptly" (Ne 1:7).

Matthew Henry's Concise Commentary

34:31-37 When we reprove for what is amiss, we must direct to what is good. Job's friends would have had him own himself a wicked man. Let will only oblige him to own that he spoke unadvisedly with his lips. Let us, in giving reproof, not make a matter worse than it is. Elihu directs Job to humble himself before God for his sins, and to accept the punishment. Also to pray to God to discover his sins to him. A good man is willing to know the worst of himself; particularly, under affliction, he desires to be told wherefore God contends with him. It is not enough to be sorry for our sins, but we must go and sin no more. And if we are affectionate children, we shall love to speak with our Father, and to tell him all our mind. Elihu reasons with Job concerning his discontent under affliction. We are ready to think every thing that concerns us should be just as we would have it; but it is not reasonable to expect this. Elihu asks whether there was not sin and folly in what Job said. God is righteous in all his ways, and holy in all his works, Ps 145:17. The believer saith, Let my Saviour, my wise and loving Lord, choose every thing for me. I am sure that will be wisest, and the best for his glory and my good.