A poem by John Newton expresses the atonement and its effect on one man more than any other.  It has become one of the most well known hymns of all time.  This is the full version of that song:

Amazing Grace


Amazing Grace! How sweet the sound!

That saved a wretch like me!

I once was lost, but now am found;

Was blind but now I see.



In evil long I took delight

Un-awed by shame or fear;

‘Til a new object met my sight

And stopped my wild career.



I saw One hanging on a tree,

In agonies and blood

Who fixed His languid eyes on me

As near His cross I stood.



Sure, never ‘til my latest breath

Can I forget that look.

It seemed to charge me with His death

Though not a word He spoke.



My conscience owned and felt the guilt,

And plunged me in despair;

I saw my sins His blood had shed,

And helped to nail Him there.



Alas, I knew not what I did,

But all my tears were vain;

Where could my trembling soul be hid,

For I the Lord had slain.



A second look he gave which said,

“I freely all forgive!

“This blood is for thy ransom paid,

“I die that thou mayest live.”



Twas grace that taught my heart to fear,

And grace my fears relieved;

How precious did that grace appear

The hour I first believed.



Through many dangers, toils and snares

I have already come.

‘Tis grace hath brought me safe thus far,

And grace will lead me home!



The Lord has promised good to me,

His word my hope secures;

He will my shield and portion be,

As long as life endures.



Yes, when this flesh and heart shall fail,

And mortal life shall cease,

I shall possess within the veil

A life of joy and peace.



The earth shall soon dissolve like show,

The sun forbear to shine,

But God who called me here below

Shall be forever mine!



When we’ve been there ten thousand years

Bright shining as the sun,

We’ve no less days to sing God’s praise

Than when we first begun!

Here this played on the violin:

Amazing Grace!