Yes, the song has its origin in this poem. xo
Amazing grace! (how sweet the sound!)
That sav’d 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 reliev’d;
How precious did that grace appear,
The hour I first believ’d!
Thro’ many dangers, toils, and snares,
I have already come;
‘Tis grace has brought me safe thus far,
And grace will lead me home.
The Lord has promis’d 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.
This earth shall soon dissolve like snow,
The sun forbear to shine;
But God, who call’d me here below,
Will be for ever mine. ~ John Newton