Show me where I have been wrong. How painful are honest words

Job 6:1-30
Oh, that I might have my request, that God would grant what I hope for, that God would be willing to crush me,   to let loose his hand and cut off my life! Then I would still have this consolation—my joy in unrelenting pain— that I had not denied the words of the Holy One.
What strength do I have, that I should still hope? What prospects, that I should be patient? Do I have the strength of sone? Is my flesh bronze? Do I have any power to help myself, not what success has been driven from me?
Teach me, and I will be quiet, show me where I have been wrong. How painful are honest words! 
How painful are honest words! But what do your arguments prove?
You would even cast lots for the fatherless and barter away your friend.
It is nauseating advice to tell a man at the end of his tether to be patient.  Job wants only to cease to be. His friends have failed to show sympathy when he needed it most.
Why?
The job was under the painful situation, his friend has failed to show sympathy, so Job claimed to show me where I have been wrong? 
Job under pain so his strength is limited, he is flesh, not a bronze. His friends thought he is unrighteousness so Job asked his friends to show where he was wrong.
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1-6 約伯感嘆朋友的誤會。你們不知道我受了的苦，否則我怎麼會這樣說呢?安慰好像無味的食物難以下嚥。無助無依靠。我是灰心到無力，而想結束生命，多麼的軟弱。我們很容易用聖經的話來說別人，顯出自己的義！
安靜下來，從神那裏得著話語、力量。
15-21 你們好像結冰的河，天氣變暖就消化，看來有希望，結果枉然。原來給人希望的卻變為失望。人的話好像安慰人，卻沒有用，成為幻影，無法幫助人。
耶和華的語言快活人心.....
只有從神來的才能安慰人。
22-23 我不是要你們來幫助我！
24-30 說出來我那裏有罪?有錯的。他們無法體會約伯受的有多麼的苦!只是把他們想要講的倒出來。
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How?
Be sympathetic to the suffering man, do not just others. For I am a sinner either.