Here's a link to the 1964 Newport Folk Festival recording: https://www.youtube.com/watch?v=SxKQ2TFEUGA

Below is how I hear it. "Black cloud" line is a bit questionable -- I thought "backslider" at first, but it's not quite right. Same with the final line, but it's pretty garbled.

I would rather be buried in some old cypress grove
I would rather be buried in some old cypress grove
Than to have a contrary woman, Lord, that I never can control

When your knee bone gets to aching and your body's getting cold
When your knee bone gets to aching and your body's getting cold
Don't you know you're just getting ready for some old cypress grove

Yonder a church bell is a-tolling and the hearse is driving slow
And a church bell is tolling, hearses is driving slow
You know, somebody's getting ready for the cypress grove

And my momma, she told me when I was 12 years old
My momma, she told me when I was 12 years old
Son, you ain't gonna be nothing but a black cloud, oh, I pray the good Lord to save your soul

And I'm going away, baby, going away to stay
And I'm going away, going away to stay
If I happen to get lucky, I may be back home some rainy day

I'm gonna sing this song and then I ain't gonna sing no more
I'm gonna sing this song and I ain't gonna sing no more
Because she pushes and there'll come a time, baby, and your husband, he can just -- I just got to go