Isaiah 6 begins with these words “In the year King Uzziah died, I saw the Lord”.
When Isaiah hears the question “who will go for Us, whom shall We send”? He answers “here I am send me”.
If you look earlier in the same chapter, when Isaiah has the vision of God, he cries out “woe is me, I am undone, for I am a man of unclean lips” .
When one truly sees God, they realize how totally undeserving, unworthy, and yes even contemptible, disreputable, and disgraceful they are. This is true of every human being. There is none righteous, no not even one. In fact all our “righteousness” is as filthy rags. To see the Lord is to see what you really are. If you remember, Job cries out saying that if only the Almighty would tell him what it was that He had against him, why was he being punished, what have I done wrong and finally when the Lord God does appear and speak to him, Job’s answer was ‘I repent in dust and ashes” and “I did not know what I was saying.” Seeing One who is so absolutely good, and pure, and holy and beautiful makes the comparison all the more preposterous. There is no comparison.
Isaiah was cleansed by the coal from the fire of the altar of God. His sins had been forgiven and his iniquities pardoned. How gracious is our God.
And Job, after the Lord restores all that all that he lost, He had Job pray for his three friends whom God said were the ones in error.
God has cleansed us from all our sins and iniquities by the precious blood of Jesus,
the Lamb of God, slain from the foundation of the earth, are you ready to answer Him with “Here I am send me.