Today I will talk about Job 40:1-5.
1 Moreover the Lord answered Job, and said,
2 Shall he that contendeth with the Almighty instruct him? he that reproveth God, let him answer it.
So, God is letting Job know, that some of what he was saying was against/contending with God's word. And now Job must speak.
3 ¶Then Job answered the Lord, and said,
4 Behold, I am vile; what shall I answer thee? I will lay mine hand upon my mouth.
Here Job starts off saying, "Behold" look at me, look at all that You have taught me and said. "I am vile". I have sinned against Thee, I am unclean before Thee. I think this question is more towards himself. "what shall I answer thee?" What would any of us answer God after receiving such a sermon? What answer would be satisfactory? God knows the answers, so what would be the consequence of getting them wrong? So Job would lay his hand upon his mouth. Stopping his own speech least he brings himself under more condemnation.
5 Once have I spoken; but I will not answer: yea, twice; but I will proceed no further.
Job, in the presence of Deity, has spoken, indeed but is not willing to answer His current question, "shall he that contendeth with the Almighty instruct him?" Job even knows the answer to two of God's questions, but, will not even attempt to proceed further.
I have proceeded further, in an attempt to understand the scriptures. Indeed, faced in the very presence of God or His voice from the whirlwind, I do not believe I could speculate. Thus is why, we must commune with God, and allow his goodness to leave impressions upon us. That we may know His will.