What I recall of the song is:

"Too long, you've waited too long to come home"
"Your Daddy doesn't need you anymore."
"Too long, you don't belong here anymore,"
So stop knock, knock, knocking on my front door."

"You left me sweet mama for no good reason at all."
"And now there's another mule kicking in that same old stall."

Any help would be appreciated. I never could understand everything Sam sang.

Roger in Baltimore