Just how corrupt is man, really? Romans 3-4

Just how corrupt is man, really?   If we could cut open a man and see the evil in his/her life, body, soul, heart, what would it look like?  Most men believe they are typically "mostly" good.   They don't see themselves as evil.  Most men see themselves as redeemable and believe, if God redeems us, He does so because we deserve it.    However, if we did a complete biopsy of man's spiritual soul, here is what we would see.  Notice the body parts mentioned by Paul in this passage:

Romans 3:12-18

All have turned aside, together they have become useless;

There is none who does good,

There is not even one.”

 “ Their throat is an open grave,

With their tongues they keep deceiving,”

“ The poison of asps is under their lips”;

 “ Whose mouth is full of cursing and bitterness”;

 “ Their feet are swift to shed blood,

 Destruction and misery are in their paths,

 And the path of peace they have not known.”

 “ There is no fear of God before their eyes.”

Paul mentions the throat, the tongue, the lips, the mouth, the feet and the very paths of man as being totally and completely corrupt.   In the verses just before Paul states that no man will "seek" God.   The following verses show why.   Man is a corrupt beast ... all men.   This is why we need the action of God through HIs Son, Jesus, to redeem us.   We have no good to offer to God.   We are completely broken and need the God of the universe to fix us.   That is the gospel message.  Until you come to the point that you realize that God came to restore a "completely" broken vessel and that you and I have nothing to offer Him, you won't know the real redemptive story and the beauty of God's Grace.