I thirst, but not as once I did,
The vain delights of earth to share;
Thy wounds, Emmanuel, all forbid
That I should seek my pleasures there.
It was the sight of Thy dear cross
First wean'd my soul from earthly things;
And taught me to esteem as dross
The mirth of fools and pomp of kings.
I want that grace that springs from Thee,
That quickens all things where it flows,
And makes a wretched thorn like me
Bloom as the myrtle, or the rose.
Dear fountain of delight unknown!
No longer sink below the brim;
But overflow, and pour me down
A living and life-giving stream!
For sure of all the plants that share
The notice of thy Father's eye,
None proves less grateful to His care,
Or yields him meaner fruit than I.
William Cowper
http://www.poemhunter.com/poem/my-soul-thirsteth-for-god/
