John Newton, a former slave owner, wrote these words to announce his conversion by Jesus Christ.  Probably written in the 1830’s. 

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. 

’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.