Hildebrand has been singing this song since the 60's. Lovely song. I'll be interested to hear more. Cheers, Joy
Here's what he's got to say:
Hildebrand here.
I learned this about 1960 from Phil Rhodes (Perlman). He said it was from the Bahamas.   
I can only remember the one verse and chorus.

Chorus:

Depend on me, I'll depend on you.
I'll be your servant faithful and true.
When you hear my Master call,
You can depend on me.

Verse:

Dig my grave with a silver spade.
Lower me down with a golden chain.
When you hear my Master call,
You can depend on me.