Essentially finished the hymn and recorded me singing it in four parts (click here to listen) so as to give some idea of what a group of voices will do to it - the words are by Isaac Watts as follows:

My God, the spring of all my joys,
The life of my delights,
The glory of my brightest days,
And comfort of my nights.

In darkest shades if he appear
My dawning is begun;
He is my soul's sweet morning star,
And he my rising sun.

The op’ning heav’ns around me shine
With beams of sacred bliss,
While Jesus shows his heart is mine,
And whispers I am his.

My soul would leave this heavy clay
At that transporting word,
Run up with joy the shining way,
T’ embrace my dearest Lord.

Fearless of hell and ghastly death,
I’d break through ev’ry foe;
The wings of love, and arms of faith
Should bear me conqu’ror through.